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Game Score is a per-game productivity formula by John Hollinger. It combines all box-score stats into a single number that approximates a player's total contribution each game.
Game Score was created by John Hollinger as a rough measure of a player's productivity for a single game. It weighs all box-score statistics with different coefficients to produce a single number. A Game Score of 10 is roughly average, while 40+ represents a historically great performance.
Players like Joel Embiid achieve high Game Scores by combining elite scoring with strong rebounding and defensive stats, while players like Nikola Jokic benefit from their all-around contributions across every statistical category.
Game Score = PTS + 0.4*FG - 0.7*FGA - 0.4*(FTA-FT) + 0.7*ORB + 0.3*DRB + STL + 0.7*AST + 0.7*BLK - 0.4*PF - TOV. It distills a game performance into a single number.
A Game Score of 10 is average. Above 20 is very good. Above 30 is outstanding. The highest single-game Game Score ever recorded was Kobe Bryant's 81-point game (63.8).
Game Score is a per-game metric while PER is per-minute. Game Score is simpler and more transparent in its calculation. Both use similar box-score inputs but PER includes more adjustments for pace and league context.
Turnovers give the opposing team extra possessions, directly hurting your team. Each turnover subtracts 1.0 from Game Score, penalizing careless ball-handling alongside missed shots.