What winning percentage measures
Winning percentage is the share of decided games a team or player has won. It is the standard way to compare records in baseball, basketball, hockey, chess clubs, esports and fantasy leagues, because it puts teams with different numbers of games played on the same scale. A team that is 10-5 and a team that is 20-10 have the same winning percentage, 66.7%, even though the raw totals differ.
Use this calculator to turn a win-loss record into a percentage, to see the matching loss percentage, and to confirm the number of games counted. It is helpful for checking standings, tracking a season in progress, evaluating a player's head-to-head record, or working out whether a target such as .600 is within reach. Enter whole numbers of wins and losses; ties are not counted in this tool.
Formula and variables
Win % = Wins ÷ (Wins + Losses) × 100
- Wins (W): the number of games won.
- Losses (L): the number of games lost.
- Total games: W + L. Ties and no-contests are excluded, so if your league counts them you must adjust separately.
- Loss % = L ÷ (W + L) × 100, so win % plus loss % always equals 100.
Sports pages often write the result as a decimal, such as .586, which is simply the percentage divided by 100 and rounded to three places.
Worked example
A baseball team finishes with 95 wins and 67 losses. Total games = 95 + 67 = 162. Winning percentage = 95 / 162 = 0.58642, which is 58.64%. Loss percentage = 67 / 162 = 0.41358, or 41.36%. In the usual baseball format this is a .586 team. The calculator shows 58.64%, 41.36% and 162 total games for these inputs. To learn how many more wins a .600 season would need, note 0.600 × 162 = 97.2, so the team would need 98 wins.
Common mistakes and how to interpret the result
- Dividing wins by losses. That gives a win-loss ratio, not a percentage. 95 / 67 is 1.42, which is a different statistic.
- Counting ties as losses or wins without checking the league rule. Some leagues count a tie as half a win. This calculator ignores ties, so results may differ from official standings.
- Ignoring the sample size. A 3-0 start is 100%, but three games say very little about true strength. Percentages settle down only over many games.
- Comparing across sports without context. A .600 record is elite in baseball but ordinary in some other sports, where records are more lopsided.
Frequently Asked Questions
How do I calculate winning percentage?
Why are ties not included?
What is a good winning percentage?
Is winning percentage the same as win probability?
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