Longest Major League Baseball (MLB) postseason game (duration)
- Who
- Los Angeles Dodgers, Boston Red Sox
- What
- 7:20 hour(s):minute(s)
- Where
- Not Applicable
- When
- 27 October 2018
The longest Major League Baseball (MLB) postseason game lasted 7 hours 20 minutes. The Los Angeles Dodgers defeated the Boston Red Sox, 3–2, in 18 innings, in Game Three of the 2018 World Series on 27 October 2018.