| 1948 MLB season | |
|---|---|
| League | American League (AL) National League (NL) |
| Sport | Baseball |
| Duration | Regular season:
|
| Number of games | 154 |
| Number of teams | 16 (8 per league) |
| Regular season | |
| Season MVP | AL: Lou Boudreau (CLE) NL: Stan Musial (SLC) |
| AL champions | Cleveland Indians |
| AL runners-up | Boston Red Sox |
| NL champions | Boston Braves |
| NL runners-up | St. Louis Cardinals |
| World Series | |
| Champions | Cleveland Indians |
| Runners-up | Boston Braves |
The 1948 major league baseball season began on April 19, 1948. The regular season ended on October 4, with the Boston Braves and Cleveland Indians as the regular season champions of the National League and American League, respectively. The Indians won the American League title via a tie-breaker game victory over the Boston Red Sox, after both teams finished their 154-game schedules with identical 96–58 records. This was the second regular season tie-breaker, and saw a change from the previous three-game format to that of a single-game, Game 163. The postseason began with Game 1 of the 45th World Series on October 6 and ended with Game 6 on October 11. The Indians defeated the Braves, four games to two.
The 15th Major League Baseball All-Star Game was played on July 13, hosted by the St. Louis Browns and St. Louis Cardinals at Sportsman's Park in St. Louis, Missouri, with the American League winning, 5–2 for their third straight win.