The longest baseball game ever played is the 33-inning game between the Pawtucket Red Sox and the Rochester Red Wings in 1981. This minor league game lasted over eight hours, was played across two different days, and ended with the Pawtucket Red Sox winning 3-2 in the bottom of the 33rd inning.

In Major League Baseball (MLB), the longest game by innings played was 26 innings between the Brooklyn Robins and the Boston Braves in 1920, which ended in a 1-1 tie. The longest MLB game in terms of time lasted 8 hours and 6 minutes over 25 innings between the Chicago White Sox and the Milwaukee Brewers in 1984.