The longest game in terms of innings was played on May 1, 1920 between the Brooklyn Dodgers and Boston Braves, as the teams played to a 1-1 tie after 26 innings. The Braves’ Joe Oeschger shut out the Dodgers for the last 21 innings, topping Art Nehf‘s record of 20 scoreless frames in a row on August 1, 1918. In their next two games, the Dodgers lost a 13-inning game to the Phillies and a 19-inning game in a return to Boston.
The longest game in terms of time went 8 hours and 6 minutes, as Chicago beat Milwaukee 7-6 in a game that lasted 25 innnings. The game started on May 8, 1984 and concluded on May 9.