| 2003 American League Championship Series | ||||||||||
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| Dates | October 8–16 | |||||||||
| MVP | Mariano Rivera (New York) | |||||||||
| Umpires | Tim McClelland Terry Craft Alfonso Márquez Derryl Cousins Joe West Ángel Hernández | |||||||||
| Broadcast | ||||||||||
| Television | Fox (United States) MLB International (International) | |||||||||
| TV announcers | Joe Buck, Tim McCarver, Bret Boone and Chris Myers (Fox) Gary Thorne and Rick Sutcliffe (MLB International) | |||||||||
| Radio | ESPN | |||||||||
| Radio announcers | Jon Miller and Joe Morgan | |||||||||
| Streaming | ||||||||||
| ALDS |
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The 2003 American League Championship Series (ALCS) was played between the Boston Red Sox and the New York Yankees from October 8 to 16, 2003. The Yankees won the series four games to three to advance to the World Series, where they lost in six games to the National League champion Florida Marlins.