Game Score Calculator - Basketball Single-Game GS

A game score calculator is a small basketball analytics tool that turns a single-game box score into the Hollinger GS. Type the 12 lines and the calculator returns the primary result, the positive contribution, the negative contribution, and the points-only component.

• • NBA Single-Game Performance Rating: Rate an NBA starter's night by GS to compare players from different teams or eras.
• • NCAA and Amateur Box-Score Reviews: Coaches use the same Hollinger formula at the end of a film session, since the metric is position-neutral.
• • Historical Single-Game Comparisons: Compare a current box score against the all-time leaders - Michael Jordan's 64.6, Kobe Bryant's 63.5, Karl Malone's 60.2.
• • Reading a Box Score Out Loud: Broadcasters use the metric as a one-number shortcut on air next to points, rebounds, and assists.

GS is a single number, not a per-minute rate. A 30-point game with five turnovers and four missed free throws looks different on the points line than on the GS line. A 10 is average NBA performance; 40 or higher is historically great; the record is Michael Jordan's 64.6.

GS is the simplified sibling of the parent Hollinger metric, and basketball PER calculator shows the full per-minute player efficiency rating that adjusts for league pace and team tempo, so the same box score can be read against the more detailed per-minute number.

The GS formula adds the positive box-score lines with their Hollinger weights and subtracts the negative lines with their weights, producing the contribution cards shown alongside the primary result.

• points: Total points scored. Weight: +1.0 per point.
• fieldGoals: Field goals made. Weight: +0.4 each.
• fieldGoalAttempts: Field goal attempts. Weight: -0.7 each.
• freeThrows: Free throws made. Weight: +0.4 each.
• freeThrowAttempts: Free throw attempts. Weight: -0.4 each.
• offensiveRebounds: Offensive rebounds. Weight: +0.7 each.
• defensiveRebounds: Defensive rebounds. Weight: +0.3 each.
• assists: Assists. Weight: +0.7 each.
• steals: Steals. Weight: +1.0 each.
• blocks: Blocks. Weight: +0.7 each.
• personalFouls: Personal fouls. Weight: -0.4 each.
• turnovers: Turnovers. Weight: -1.0 each, the largest single negative.

The points component is 18.0 in the worked example, more than the final 13.4. That gap is the entire Hollinger point: it costs the player GS points for every missed field goal, missed free throw, foul, and turnover. A player who scores the same 18 points on 9-of-12 shooting with no turnovers would post a much higher number.

According to Basketball Reference glossary, the Hollinger formula weights points at +1.0, steals at +1.0, offensive rebounds at +0.7, assists at +0.7, blocks at +0.7, made field goals at +0.4, defensive rebounds at +0.3, field goal attempts at -0.7, missed free throws at -0.4, personal fouls at -0.4, and turnovers at -1.0, giving a quick one-number summary of a single game.

The +0.7 weight on offensive rebounds and blocks ties GS to vertical-jump ability, and vertical leap calculator returns the standing reach, jump reach, and vertical inch gains behind the same plays the box score rewards.

Four concepts explain what the number measures and how to read it next to other lines on a box score.

One useful sanity check: the primary result equals positive minus negative contribution, and the points component is the points line alone. The calculator keeps those numbers in agreement, so the result panel can verify a stat-sheet entry. According to Wikipedia, GS is a basketball statistic devised by John Hollinger as a simplified version of PER, designed to summarize a single game with a single number comparable across players and eras (https://en.wikipedia.org/wiki/Game_score).

Both GS and NFL passer rating compress one game into one comparable number from a box score, and NFL passer rating calculator returns the same kind of one-game, one-number summary for a quarterback's night.

Five short steps take you from a printed box score to a Hollinger value that lines up with the way the metric was defined.

1. 1 Pull the Box Score: Find the single-game box score from a live NBA feed, NCAA box score, or paper stat sheet. The 12 lines are points, FG made and attempted, FT made and attempted, OR, DR, A, S, B, PF, T.
2. 2 Enter the Scoring Lines: Type the points, FG, and FGA. Points carry +1.0, made FGs +0.4 each, FGAs -0.7 each, so the same points on different shooting produce different GS values.
3. 3 Enter the Free Throw Lines: Type the FT and FTA. Combined weights yield -0.4 per miss, so a 6-of-17 line pulls the score down more than a 6-of-7 line.
4. 4 Enter Rebounds, Assists, Steals, Blocks: Type OR, DR, A, S, B. Weights are +0.7, +0.3, +0.7, +1.0, +0.7. Set any line a player did not record to zero.
5. 5 Enter the Fouls and Turnovers: Type PF and T. Fouls are -0.4 each and turnovers -1.0 each, the largest single negative, so a high-turnover night pulls the score down faster than the same missed shots.

A center finishes with 22 points, 9 FG on 14, 4 FT on 6, 5 OR, 7 DR, 3 A, 1 S, 3 B, 4 PF, 2 T. The result is a GS of 22.0, a strong above-average performance the stat sheet does not show.

A 30+ GS night usually means heavy minutes and a high-intensity workload, and sport calorie burn calculator returns the calorie cost for body weight, sport, and minutes played so the same game reads against the energy the player paid for that GS line.

A small dedicated calculator removes the manual weighting step and produces a result that lines up with the way the same stat is reported on Basketball Reference.

• • Removes Manual Weighting: Stops the user from multiplying each box-score line by the Hollinger coefficient in their head. The calculator carries the 12 weights in one place.
• • Shows Positive and Negative Halves: Returns the positive and negative contributions alongside the primary result, so the same box score reads as upside and downside.
• • Works on a Single Box Score: Does not need league-wide inputs or pace adjustments. A single NBA, NCAA, or amateur box score is enough.
• • Sanity-Checks the Stat Sheet: Returns the points-only component as its own row. A mismatch usually points to a typo in another input.
• • Compares Against Historical Records: Returns a value that can be read against the all-time single-game records, including Michael Jordan's 64.6, Kobe Bryant's 63.5, Karl Malone's 60.2.

The biggest practical benefit is the position-neutral math. Switching between a guard's and a center's box score does not require a position adjustment; the Hollinger weights value the events the position typically produces.

Offensive rebounds, contested finishes, and shot contests lean on leg and core strength, and one rep max calculator returns the player's max lift from weight and reps so the off-court program can be tuned against the box-score traits the GS formula values most.

Five factors shift a player's GS up or down from the league-typical value, and two caveats explain when the number is not the whole story.

• • The calculator returns a single GS value. It does not break the box score into per-quarter lines, so two players with the same score can have different period-by-period profiles.
• • GS is a box-score summary, not a measure of how difficult each shot was. A strong score on open catch-and-shoot looks is not the same as a weaker score on contested pull-up attempts.

Practical player evaluation usually pairs the metric with PER and a shot-quality metric. The calculator focuses on the GS side; pair it with the league's PER.

According to Omni Game Score calculator, a game score of 10 is an average performance and 40 or higher is extraordinary, and the all-time single-game record is Michael Jordan's 64.6 against the Cleveland Cavaliers on March 28, 1990, followed by Kobe Bryant's 63.5 on January 22, 2006 and Karl Malone's 60.2 on January 27, 1990.