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The formula
GAA = (goals against × game length) ÷ minutes played
Worked example
In a league with 60-minute games, a goalie allows 8 goals over 240 minutes played: GAA = (8 × 60) ÷ 240 = 2.00. In youth hockey with shorter periods, use the league’s real game length.
GAA's limit: it depends heavily on the team in front of the goalie. A goalie behind a leaky defense faces 40 shots a game and can post a high GAA while playing very well. That is why GAA is always read TOGETHER with save percentage: SV% tells you the goalie's quality, GAA tells you the overall outcome.
RinkLog measures and computes all of this automatically during your hockey, ball hockey and ringette games.
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Create my free accountOn the same topic
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- How do you evaluate a hockey goalie?Evaluating a hockey goalie beyond wins: SV%, HDSV%, consistency, quality starts and team context, with the method to measure it all.
- How do you compare two hockey goalies?Comparing two goalies without fooling yourself: at equal shot volume, using SV%, HDSV% and team context, not wins.
- GAA calculator: goals against averageCalculate a hockey goalie's goals against average (GAA) instantly: enter goals against and minutes played. Formula, worked example and benchmarks by level.
