A Triple-A game in 1981, between the Rochester Red Wings and the Pawtucket Red Sox lasted 33 innings.
The longest major league game was on May 1, 1920, between Brooklyn and Boston. It lasted 26 innings and ended in a tie.
The longest game that did NOT end in a tie was 25 innings, and there have been two of those: Brewers/White Sox in 1984, and Mets/Cardinals in 1968.
Chat with our AI personalities