What It Is
Win Score is a simplified composite developed by economist David Berri as the foundation for his Wins Produced metric. It uses points, rebounds, steals, assists, and blocks minus field goal attempts, free throw attempts, and turnovers.
How It Works
Win Score = PTS + REB + STL + 0.5 × BLK + 0.5 × AST − FGA − 0.5 × FTA − TOV
Limitations
Arbitrary coefficients. No opponent quality adjustment. The same fundamental limitations as FIC, PER, and other box score composites.
APEX Rationale
Not used in APEX. Win Score is the foundation of a methodological tradition (Berri's Wins Produced) that the analytics community generally considers less accurate than RAPM-family estimators. Position Adjusted Win Score (PAWS) is Win Score with a positional adjustment applied; neither is used.