Research
Methodology deep-dives, backtests, and modeling education — the receipts behind what we publish, not just the claims.
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Brier Scores and Calibration: Grading Our Own Model Honestly
What a Brier score is, why it's the right way to grade a probabilistic model, and the real, unfiltered results of backtesting our own NFL player prop model against 2025 outcomes — including a validation bug we caught and fixed along the way.