In sports, a winning percentage is the fraction of games or matches a team or individual has won. It is defined as wins divided by wins plus losses (i.e. — the total number of matches). Ties count as a ½ loss and a ½ win. Winning percentage is one way to compare the record of two teams; however, another standard method most frequently used in baseball and professional basketball standings is games behind.
For example, if a team's season record is 28–16–5, the team has participated in 49 matches. The five ties represent 2½ wins and 2½ losses, and so the team has an adjusted record of 30½ wins and 18½ losses, resulting in a .622 winning percentage.
In baseball, pitchers are assessed wins and losses as an individual statistic and thus have their own winning percentage, based on their win–loss record. A pitcher's winning percentage is commonly expressed to three digits.
The name "winning percentage" is actually a misnomer, since a winning percentage, such as .536, is commonly not expressed as a percentage. The same value expressed as a percentage would be 53.6%. In leagues in which points are awarded for ties and overtime losses, it's possible for a team to have a winning percentage above 0.500 (50%) despite losing more than half of the games it has played.
Major League Baseball
|.798||67||17||1880||Chicago Cubs||best pre-modern season|
|.763||116||36||1906||Chicago Cubs||best National League 154-game season|
|.721||111||43||1954||Cleveland Indians||best American League 154-game season|
|.716||116||46||2001||Seattle Mariners||best American League 162-game season|
|.250||40||120||1962||New York Mets||worst 162-game season|
|.248||38||115||1935||Boston Braves||worst National League season|
|.235||36||117||1916||Philadelphia Athletics||worst American League season|
|.130||20||134||1899||Cleveland Spiders||worst pre-modern season|
National Basketball Association
|.878||72||10||1995–96||Chicago Bulls||best 82-game season|
|.110||9||73||1972–73||Philadelphia 76ers||worst 82-game season|
National Hockey League
In ice hockey, standings are determined by points, not wins, changing the nature of this statistic. In the National Hockey League, teams are awarded two points for a win, and one point for either a tie (a discontinued statistic) or an overtime loss. Since this calculation is not based solely on wins, the statistic is called points percentage. It can be calculated as follows:
|.825||60||8||12||132||1976–77||Montreal Canadiens||best points % in post-expansion NHL|
|.131||8||67||5||21||1974–75||Washington Capitals||worst points % in post-expansion NHL|
- "Career Leaders and Records for Points Percentage (Goalie)". Hockey-Reference.com. http://www.hockey-reference.com/leaders/points_pct_goalie_career.html. Retrieved 24 May 2009.
- "2008–2009 – REGULAR SEASON – SUMMARY – POINT PERCENTAGE". NHL.com. http://www.nhl.com/ice/teamstats.htm?fetchKey=20092ALLAAAAll&sort=pointPctg&viewName=summary. Retrieved 24 May 2009.
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