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Winning percentage

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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 the total number of matches played (i.e. wins plus draws plus losses). A draw counts as a ​12 win.

For example, if a team's season record is 30 wins and 20 losses, the winning percentage would be 60% or 0.600. If a team's season record is 30–15–5 (i.e. it has won thirty games, lost fifteen and tied five times), the five tie games are counted as 2​12 wins, and so the team has an adjusted record of 32​12 wins, resulting in a 65% or .650 winning percentage for the fifty total games from

winning percentage = wins + 0.5 ties total games 100 % {\displaystyle {\text{winning percentage}}={{\text{wins}}+0.5\cdot {\text{ties}} \over {\text{total games}}}\cdot 100\%}
65 % = 32.5 50 100 % {\displaystyle 65\%={32.5 \over 50}\cdot 100\%}

In North America, winning percentages are expressed as decimal values to three decimal places. It is the same value, but without the last step of multiplying by 100% in the formula above. Furthermore, they are usually read aloud as if they were whole numbers (e.g. 1.000, "a thousand" or 0.500, "five hundred"). In this case, the name "winning percentage" is actually a misnomer, since it is not expressed as a percentage. A winning percentage such as .536 ("five thirty-six") expressed as a percentage would be 53.6%.

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. In baseball, a pitcher is assessed wins and losses as an individual statistic and thus has his own winning percentage, based on his win–loss record.

However, in association football, a manager's abilities may be measured by win percentage. In this case, the formula is wins divided by total number of matches; draws are not considered as "half-wins", and the quotient is always in percentage form.

In the National Football League, division winners and playoff qualifiers are technically determined by winning percentage and not by number of wins. Ties are currently counted as half a win and half a loss, however, prior to 1972 tied games were disregarded for the purposes of this calculation — a 10–2–2 record (10÷12 ≈ 0.833) would then have outranked an 11–3 record (11÷14 ≈ 0.785). Tie games, a fairly common occurrence in football before the introduction of overtime, were thus somewhat more valuable to teams with a winning record, as compared with current rules.

Some leagues and competitions may instead use a points percentage system, changing the nature of this statistic. In this type of method, used in many group tournament ranking systems, the competitors are awarded a certain number of points per win, fewer points per tie, and none for a loss. The teams are then ranked by the total number of these accumulated points. One such method is the "three points for a win", where three points are awarded for winning a game, one point is awarded for a draw, and no points are awarded for a loss. The National Hockey League (which uses an overtime and shootouts to break all ties) awards two points for a win in regulation or overtime/shootout, one point for an overtime loss, and none for a regulation loss.[1][2]

Winning percentage Intro articles: 7


Major League Baseball

Win % Wins Losses Year Team Comment
.798 67 17 1882 Chicago White Stockings best pre-modern season
.763 116 36 1906 Chicago Cubs best 154-game NL season
.721 111 43 1954 Cleveland Indians best 154-game AL season
.716 116 46 2001 Seattle Mariners best 162-game AL season
.667 108 54 1975 Cincinnati Reds best 162-game NL season
.250 40 120 1962 New York Mets worst 162-game NL season (2 games rained out)
.265 43 119 2003 Detroit Tigers worst 162-game AL season
.248 38 115 1935 Boston Braves worst 154-game NL season
.235 36 117 1916 Philadelphia Athletics worst 154-game AL season
.130 20 134 1899 Cleveland Spiders worst season ever

National Basketball Association

Win % Wins Losses Season Team Comment
.890 73 9 2015–16 Golden State Warriors best 82 game season
.110 9 73 1972–73 Philadelphia 76ers worst 82-game season
.106 7 59 2011–12 Charlotte Bobcats worst season statistically

National Hockey League

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. It can be calculated as follows:

P o i n t s   p e r c e n t a g e = P o i n t s T o t a l   p o s s i b l e   p o i n t s = O v e r t i m e   L o s s e s + ( 2 × W i n s ) 2 × G a m e s   P l a y e d {\displaystyle \mathrm {Points} \ \mathrm {percentage} ={\frac {\mathrm {Points} }{\mathrm {Total\ possible\ points} }}={\frac {\mathrm {Overtime\ Losses+(2\times Wins)} }{\mathrm {2\times Games\ Played} }}}
Points % Wins Losses Ties Points Season Team Comments
.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

Winning percentage Statistics articles: 6

See also