We publish our misses.
Every Tuesday, once the NFL's official stats land, we score last week's served projections against what actually happened and post it here — no cherry-picking, no re-runs. Lower is better. MAE is the average miss in PPR points per player; rank correlation says whether we ordered players correctly (1.0 = perfect).
This season, week by week
| Week | Pos | Players | MAE | RMSE | Rank corr |
|---|---|---|---|---|---|
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Backtest
The served model, trained on 2022–24 only, scored on every week of the 2025 season it never saw. This is the number we started from.
| Position | Player-weeks | MAE | RMSE | Rank corr |
|---|---|---|---|---|
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Skill positions: players projected at 3+ PPR points. K and D/ST: every starter. Rank correlation is Spearman, averaged across weeks. Source: GET /v1/accuracy on the public API.