1948 Major League Baseball postseason
| Tournament details | |
|---|---|
| Dates | October 4-11, 1948 |
| Teams | 3 |
| Final positions | |
| Champions | Cleveland Indians (2nd title) |
| Runners-up | Boston Braves |
The 1948 Major League Baseball season resulted in a tie for the American League pennant between the Cleveland Indians and Boston Red Sox. Both finished the regular season with identical 96-58 records.
The tie thus required a one-game playoff to be held between the two teams. This game was played on October 4, 1948 at Fenway Park in Boston. The Indians defeated the Red Sox and advanced to the 1948 World Series, where they defeated the National League champion Boston Braves in six games.