On May 17, 1998, Wells pitched the 15th perfect game in baseball history, when he blanked the Minnesota Twins, 4–0. Wells attended the same San Diego high school, Point Loma High School, as Don Larsen, whose perfect game for the Yankees in the 1956 World Series was the only perfect game or no-hitter ever thrown in postseason play until 2010, and was until then the only perfect game thrown by a Yankee. David Cone would add a third Yankee perfect game in 1999. Wells claimed that he threw the perfect game while having a "raging, skull-rattling hangover". Comedian Jimmy Fallon, who partied with Wells the night before the game, backed up this claim.