On May 15, 1981, Len Barker of the Cleveland Indians threw a perfect game against the Toronto Blue Jays at Cleveland Stadium, the 10th perfect game in Major League Baseball history.^[1] The Indians defeated the Blue Jays 3–0, as Barker did not allow a baserunner.^[2] Barker never once reached ball three against any Blue Jay hitter. He struck out 11 Blue Jays hitters (all of them swinging) including seven of the last 11 batters.^[3]

Len Barker's perfect game

Len Barker pitched the 10th perfect game in Major League Baseball history.
Toronto Blue Jays Cleveland Indians 0 3
1 2 3 4 5 6 7 8 9 R H E Toronto Blue Jays 0 0 0 0 0 0 0 0 0 0 0 3 Cleveland Indians 2 0 0 0 0 0 0 1 X 3 7 0
Date	May 15, 1981
Venue	Cleveland Stadium
City	Cleveland, Ohio
Managers	Bobby Mattick (Toronto Blue Jays) Dave Garcia (Cleveland Indians)
Television	Cleveland: WUAB channel 43
TV announcers	Cleveland: Joe Tait and Bruce Drennan
Radio	Cleveland: WWWE (3WE) 1100 AM
Radio announcers	Cleveland: Herb Score and Nev Chandler

Barker's perfect game is the most recent no-hitter thrown by a Cleveland pitcher.^[4] "I run into people almost every day who want to talk about it," Barker said in 2006. "Everyone says, 'You're probably tired of talking about it.' I say, 'No, it's something to be proud of.' It's a special thing."^[5] The Indians have the longest active no-hitter drought in MLB.

Barker was the first perfect game pitcher who did not come to bat during the entire game, with the American League having adopted the designated hitter in 1973.

Ron Hassey, Barker's catcher, would catch Dennis Martínez's perfect game in 1991, thus becoming the only catcher, to date, to catch two perfect games and the only one to catch a perfect game in both leagues.

Danny Ainge, who would play 14 seasons in the NBA, was on the losing end of this game. He grounded out and struck out in his two at-bats; in the ninth inning, he was pinch-hit for by Alvis Woods, who struck out.