Game Score Calculator
Calculate John Hollinger's Game Score — a single-number summary of a basketball player's contribution in a single game, accounting for points, rebounds, assists, blocks, steals, fouls, and turnovers.
Reviewed October 7, 2026 Runs in your browser — inputs are never stored
This tool provides general sports and fitness estimates for educational purposes only. It is not medical advice — consult a physician before starting or intensifying training, especially if you have a cardiovascular condition.
About the Game Score Calculator
The Game Score calculator uses John Hollinger’s formula to sum up a player’s box score in one number. Points, made shots, rebounds, steals, assists and blocks add to the score, while missed shots, missed free throws, fouls and turnovers subtract. About 10 is an average game and 40 is outstanding.
How to use it
- 1Enter points, field goals made and attempted.
- 2Enter free throws made and attempted, rebounds, steals, assists and blocks.
- 3Enter fouls and turnovers and press Calculate.
Worked example
25 points on 10/18 shooting, 5/6 free throws, 8 rebounds (2 offensive), 2 steals, 5 assists, 1 block, 3 fouls and 3 turnovers gives a Game Score of about 21.2.
How it works
Formula
GmSc = 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 − TO
Common use cases
- Rating individual performances
- Comparing games across a season
- Fantasy basketball
Frequently asked questions
A:Game Score was created by John Hollinger to give a rough estimate of a player's statistical performance in a single game.
A:Wilt Chamberlain's 100-point game in 1962 generated an estimated Game Score of ~78.
A:A GmSc of 25+ is an excellent game; 40+ is an all-time caliber performance.
A:GmSc = 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 − TO.
A:Yes — it penalizes missed shots (FGA) and turnovers, rewarding scoring efficiency.
Reviewed for accuracy · Last updated October 7, 2026
Formulas follow published sports-science literature and official league definitions (Karvonen heart rate reserve, Cooper and Bruce protocols, MET compendium values, and standard baseball, cricket, and basketball statistics).
CalcWisee Editorial Team
Calculator development and formula review
CalcWisee is an independent site founded by Ayman. Every calculator is built from a published formula or official definition, tested against hand-worked examples before it goes live, and corrected promptly when a reader reports an issue to ayman@calcwisee.com.
Expertise: Financial mathematics, Health and fitness formulas, Applied mathematics, Unit conversion standards
References & sources