All perfect games in MLB history have been 9 innings in length.
The pitcher that had the most perfect innings in one game was Harvey Haddix of the 1959 Pittsburgh Pirates against the Milwaukee Braves at County Stadium in Milwaukee. He threw 12 consecutive perfect innings but the Pirates did not score as Braves pitcher Lew Burdette 'scattered' 12 hits over a complete game of 13 innings. In the bottom of the 13th, the first Braves batter, Felix Mantilla, reached base on an error by Pirates third baseman Don Hoak ending the perfect game. After a sacrifice and an intentional walk, Joe Adcock doubled to breakup the no hitter and win the game for the Braves.
Braves' pitcher Burdette called Haddix's performance "the greatest game that's ever been pitched in the history of Baseball".
He only pitched one perfect game, It was the 20th perfect game ever pitched in MLB history.
Don Larsen pitched a perfect game in the World Series in 1956.
The first perfect game in MLB history was pitched on June 12, 1880 by John Richmond of the Worcestor Ruby Legs against the Cleveland Blues. The score was 1-0.
Roy Halladay of the Philadelphia Phillies pitched the 20th perfect game on May 29, 2010. The Phillies beat the Florida Marlins, at Florida, 1-0.
There is only one perfect or no-hitter game in World Series history. This perfect was pitched by Don Larsen in the 5th game of the 1956 World Series.
In MLB history, that would be 26 innings pitched by Leon Cadore of the Brooklyn Robins and Joe Oeschger of the Boston Braves on May 1, 1920. The game ended in a 1-1 tie (called due to darkness) and is the longest game, innings wise, in MLB history.
No one. Don Larsen, of the NY Yankees pitched the only perfect game in World Series history, in Game 5, on October 8, 1956. The Yankees beat the (then) Brooklyn Dodgers 2-0.
No one has ever pitched a perfect game against the New York Yankees.
No one pitched a perfect game in the 1948 World Series. Don Larsen of the New York Yankees pitched a perfect game in the 1956 World Series against the Brooklyn Dodgers.
No, he has not.
David Cone's in '99
The first Major League perfect game was pitched by Lee Richmond on June 12, 1880.