Are “Betting Systems” Legit — Or Just Data Mining?

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    • March 1, 2026 at 10:28 pm #51833

      Every bettor encounters “systems.”

      But what separates:

      ✔ Robust model
      from
      ✖ Overfit backtest?

      Discussion:

      • Sample size thresholds
      • Cross-season validation
      • Out-of-sample testing
      • Survivorship bias

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