| 2003 MLB season | |
|---|---|
| League | Major League Baseball |
| Sport | Baseball |
| Duration | March 30 – October 25, 2003 |
| Number of games | 162 |
| Number of teams | 30 |
| TV partner(s) | Fox, ESPN |
| Draft | |
| Top draft pick | Delmon Young |
| Picked by | Tampa Bay Devil Rays |
| Regular Season | |
| Season MVP | AL: Alex Rodriguez (TEX) NL: Barry Bonds (SF) |
| Postseason | |
| AL champions | New York Yankees |
| AL runners-up | Boston Red Sox |
| NL champions | Florida Marlins |
| NL runners-up | Chicago Cubs |
| World Series | |
| Champions | Florida Marlins |
| Runners-up | New York Yankees |
| World Series MVP | Josh Beckett (FLA) |
The 2003 Major League Baseball season ended when the Florida Marlins defeated the New York Yankees in a six-game World Series. The Detroit Tigers set the American League record for losses in a season, with 119, and the Marlins became the first team to win the championship twice as a wild card.