For newcomers, has put together a quick primer explaining the key statistics and thinking. It is now no longer used in the NBA.Ī plus−minus statistic has been used in sports economics to analyze the degree of competitive balance over time in association football.Statistical analysis of basketball is still gaining attention, both from NBA and WNBA teams and from fans and analysts. For instance, the NBA's Houston Rockets first utilized a modified version of the stat, which helped reveal the unheralded effectiveness of light-scoring Shane Battier. (c) 2020–21 season shortened due to the COVID-19 pandemic (56 games).Īlthough the statistic was pioneered in the sport of hockey, it has found its way into use in other sports and areas of life. (b) 2019–20 season shortened due to the COVID-19 pandemic (68–71 games). (a) 2012–13 season shortened due to lockout (48 games). The following is a list of situational plus−minus leaders by season, going back to the 2008-09 season (82 games, unless otherwise noted): The plus–minus rating is calculated by dividing the number of skaters on the ice for the team scored upon by the number of skaters on the ice for the scoring team, applied as a plus to all players (including goaltenders) on the ice for the scoring team and as a minus for all players (including goaltenders) on the ice for the team scored upon. Each goal is weighted based on the number of skaters (i.e. Situational plus–minus (Sit +/–) is an alternative calculation that takes into account all types of "team-based" goals, which excludes only penalty shot and shootout goals. Also, traditional plus–minus is not applied to goaltenders. Every goal included in the calculation is weighted the same regardless of the situation - even strength, power play, short-handed or empty net. Not all types of goals are included, specifically power play goals. There are some drawbacks to the traditional calculation of the plus–minus statistic in ice hockey. The Western Hockey League (WHL) awards the WHL Plus-Minus Award each year to one of its players. The NHL awarded the NHL Plus-Minus Award each year to the player with the highest plus−minus statistic during the regular season from 1982–83 to 2007–08. While Emile Francis is often credited with devising the system, he only popularized and adapted the system in use by the Canadiens. Other teams followed in the early 1960s, and the NHL started officially compiling the statistic for the 1967–68 season. The NHL's Montreal Canadiens were the first team to track the plus−minus of its players, starting sometime in the 1950s. The statistic is directly affected by overall team performance, influenced by both the offensive and defensive performance of the team as a whole. The statistic is sometimes called the plus−minus rating.Ī player's plus−minus statistic is calculated for each game played, to provide a more meaningful measure over a full season. Empty net situations are treated the same as having the goalie in net for the purposes of plus-minus: i.e., unless the scoring team is on a power play, empty net goals still count in its calculation. Power play or penalty shot goals are excluded. When an even-strength goal or shorthanded goal is scored, the plus–minus statistic is increased by one ("plus") for those players on the ice for the team scoring the goal but decreased by one ("minus") for those players on the ice for the team allowing the goal. In ice hockey, it measures a player's goal differential. Plus−minus (+/−, ±, plus/minus) is a sports statistic used to measure a player's impact on the game, represented by the difference between their team's total scoring versus their opponent's when the player is in the game. A table of NHL season stats for a player, including +/- values
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