<P> On October 8, 1956, in Game 5 of the 1956 World Series, Don Larsen of the New York Yankees threw a perfect game against the Brooklyn Dodgers . Larsen's perfect game is the only perfect game in the history of the World Series; it is one of only 23 perfect games in MLB history . His perfect game remained the only no - hitter of any type ever pitched in postseason play until Philadelphia Phillies pitcher Roy Halladay threw a no - hitter against the Cincinnati Reds on October 6, 2010, in Game 1 of the National League Division Series, and the only postseason game in which any team faced the minimum 27 batters until Kyle Hendricks and Aroldis Chapman of the Chicago Cubs managed to combine for the feat in the decisive sixth game of the 2016 National League Championship Series . </P> <P> Don Larsen of the New York Yankees made his first start in a World Series game in the 1955 World Series against the Brooklyn Dodgers . Larsen lost the game . </P>

Who pitched the only perfect game in world series history