Game Score was developed by Dom Luszczyszyn to provide a "standardized measurement for single game productivity." Originally created for baseball, then later basketball, and now a hockey, Game Score produces a quantitative number based on weighted game stats to evaluative how well (or how poorly) a player performed in an individual game. Game Score uses nine different metrics and a fairly simple formula to calculate the number:
Goals (G), primary assists (A1), secondary assists (A2), shots on goal (SOG), blocked shots (BLK), penalty differential (PD-PT), faceoffs (FOW-FOL), 5-on-5 Corsi differential (CF-CA), 5-on-5 goal differential (GF-GA).
Skaters: (0.75 * G) + (0.7 * A1) + (0.55 * A2) + (0.075 * SOG) + (0.05 * BLK) + (0.15 * PD) – (0.15 * PT) + (0.01 * FOW) – (0.01 * FOL) + (0.05 * CF) – (0.05 * CA) + (0.15 * GF) – (0.15* GA)
Goalies: (-0.75 * GA) + (0.1 * SV)
The rule of thumb for what numbers indicate good and bad Game Scores are as follows:
Great: >0.95 | Good: 0.95 to 0.45 | Fine: 0.45 to 0.15 | Bad: 0.15 to -0.15 | Awful <-0.15
It's important to note that while these help us evaluate contributions at the game level, like any statistic, should not be used as the end-all, be-all.
Note: The most current season will be the default selection in the below chart.