No vibes-only grading

Model Performance

Leaguehouse freezes each weekly forecast before results, then scores it against Sleeper’s exact league points. Additional sources use the same evaluation contract when projections are available.

2025 holdout MAE

5.14

4,897 player-weeks

Rank correlation

0.386

Within each position and week

P20–P80 coverage

59.3%

Frozen development intervals

Live evaluations

Populate after completed 2026 weeks

2026 live scorecard

Projection vs. actual

The measurement pipeline is ready. Live rows appear after Week 1 results are posted by Sleeper.

Comparison-source contract

Leaguehouse is captured automatically. Sleeper and ESPN forecasts are stored under their own source name and evaluated against the identical player-week actuals—no changing universes or scoring after results arrive.