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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 losses). A draw counts 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 30 wins and 20 losses, the winning percentage would be .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 2½ wins and 2½ losses, and so the team has an adjusted record of 32½ wins and 17½ losses, resulting in a winning percentage. In leagues in which points are awarded for overtime losses, it is possible for a team to have a winning percentage above .500 (50%) despite losing more than half of the games it has played. 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. In North America, winning percentages are expressed to three digits and read as whole numbers (e.g. 1.000, "a thousand" or .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%. However, in soccer, 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. 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.〔(【引用サイトリンク】url= http://www.hockey-reference.com/leaders/points_pct_goalie_career.html )〕〔(【引用サイトリンク】url= http://www.nhl.com/ice/teamstats.htm?fetchKey=20092ALLAAAAll&sort=pointPctg&viewName=summary )〕 ==Statistics== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Winning percentage」の詳細全文を読む スポンサード リンク
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