2003
From SABR Encyclopedia
Leagues active in 2003
- 2003 American League
- 2003 Appalachian League
- 2003 Arizona Fall League
- 2003 Arizona League
- 2003 Arizona-Mexico League
- 2003 Atlantic League
- 2003 California League
- 2003 Canadian Baseball League
- 2003 Carolina League
- 2003 Central League
- 2003 China Baseball League
- 2003 Chinese Professional Baseball League
- 2003 Cuban League
- 2003 Dominican Summer League
- 2003 Dominican Winter League
- 2003 Dutch Major League
- 2003 Eastern League
- 2003 Federation Francaise De Baseball
- 2003 Florida Instructional League
- 2003 Florida State League
- 2003 Frontier League
- 2003 Gulf Coast League
- 2003 International Baseball League
- 2003 International League
- 2003 Italian Baseball League
- 2003 Japan Central League
- 2003 Japan Eastern League
- 2003 Japan Pacific League
- 2003 Japan Western League
- 2003 Korean Baseball Organization
- 2003 Mexican League
- 2003 Mexican Pacific Winter League
- 2003 Midwest League
- 2003 National League
- 2003 New York-Pennsylvania League
- 2003 Northeast League
- 2003 Northern League
- 2003 Northwest League
- 2003 Pacific Coast League
- 2003 Pioneer League
- 2003 Probeis Winter League
- 2003 Puerto Rican Winter League
- 2003 South Atlantic League
- 2003 Southeastern League
- 2003 Southern League
- 2003 Tabasco League
- 2003 Texas League
- 2003 Venezuelan Summer League
- 2003 Venezuelan Winter League
- 2003 Western League