Ranking Backtest

Spearman rank correlation between each model's weekly top-N prediction and the actual half-PPR finish from Sleeper. Higher is better; 1.0 = perfect, 0 = random, negative = inverted. Snapshots are written each Wednesday; actuals are ingested each Tuesday after MNF.

Backtest currently scored Half-PPR (Underdog). FFPC backtest coming after Week 1.