The following are the baseball events of the year 1948 throughout the world.
Negro league baseball final standings
Negro American League final standings
Birmingham won the first half of the season while Kansas City won the second half.
- Birmingham won the first half, Kansas City won the second half.
- Birmingham beat Kansas City 3 games to 1 games in a play-off.
Negro National League final standings
This was the sixteenth and final season of the Negro National League (1933–1948). Homestead and Baltimore each won a half of the season. As such, they were matched against each other in the postseason. In the playoffs, Homestead won Games 1 and 2 before a curfew called Game 3 in the ninth inning. Game 4 went to Baltimore, but Homestead had protested that Game 3 should be played from where Game 3 had been stopped (8-4, bases loaded) rather than the start of the ninth inning (tied). The league agreed, but Baltimore refused to play and therefore forfeited.
Negro league postseason
1948 was the 23rd and final time that there was a "Playoff Series" held between black baseball teams. 1913 is retroactively the only one not in the major league era of Negro league baseball (1920-1948). 1948 is the only time that saw both the American and National League hold a postseason series to determine the pennant (Major League Baseball would not hold such a format for 21 years).
- Negro American League Championship Series: Birmingham Black Barons over Kansas City Monarchs 4–3 (one tie)
- Negro National League Championship Series: Homestead Grays over Baltimore Elite Giants 2–1 (one forfeit)
- 1948 Negro World Series: Homestead Grays over Birmingham Black Barons 4–1