The Pawtucket Red Sox and the Rochester Red Wings, two teams from the Triple-A International League, played the longest game in professional baseball history. It lasted 33 innings, with 8 hours and 25 minutes of playing time. The longest game in Major League Baseball history occurred on May 8, 1984, when the Chicago White Sox beat the Milwaukee Brewers 7-6. This is the longest game in MLB history in terms of time. It took eight hours and six minutes, and it had to be completed over two days.