{
  "generated_at": "2026-08-10T07:27:00Z",
  "date": "2026-08-10",
  "reports": [
    {
      "filename": "trifecta-comparison-2026-08-10.pdf",
      "title": "Trifecta-Bro Prediction vs Result Comparison (2026-08-10)",
      "type": "comparison",
      "tracks": ["Dubbo", "Kilcoy", "Nowra"],
      "scorable_races": 20,
      "excluded_races": ["Dubbo R7 (race time only, no finishing order)"],
      "models": [
        {"name": "Model A (default)", "exact_trifecta": 1, "winners": 4, "winner_in_top3": 9},
        {"name": "Variant B (form-heavy)", "exact_trifecta": 1, "winners": 3, "winner_in_top3": 7},
        {"name": "Variant C (place-heavy)", "exact_trifecta": 1, "winners": 3, "winner_in_top3": 7}
      ],
      "key_finding": "Default weights (Model A) performed best. Alternative scoring weights did not improve the strike rate. Shared weakness: 0/16 races had all three actual trifecta runners inside the predicted top-3."
    }
  ]
}