The History of Perfect Games in Major League Baseball

Armando Galarraga got his perfect game wiped away by one bad call, but there are still 24 in the history of the MLB. This is a complete history of perfect games in MLB. Terms to know: -GP: Games Pitched -IP: Innings pitched -W/L: Pitching Wins/Losses -ERA: Earned run average: number of runs given up by the pitcher per 9 innings that were not a result of error or passed ball -SO/K: Strikeouts -SV: Saves: Games finished by a relief pitcher, under certain circumstances (close enough game, late enough) -ERA+: Adjusted ERA stat, park and era adjusted, where 100 is league average -WHIP: Walks and hits per innings pitched: number of walks and hits allowed on average per inning -FIP: Fielding independent pitching: similar to ERA, but excludes batted balls in the field of play. Uses strikeouts, walks, and home runs. -WAR: Wins above replacement: player’s value relative to a replacement-level player at their position. fWAR is Fangraphs’ version of war, and rWAR and bWAR are Baseball-Reference’s Most video via MLB