The Florida Marlins beat the New York Yankees 4-2 in the 2003 World Series. The table below lists every postseason series the source records for 2003, with the exact wins, losses and ties as staged.
| Round | Champion | Result | Runner-up | Leagues |
|---|---|---|---|---|
| World Series | Florida Marlins | 4-2 | New York Yankees | NL vs AL |
| AL Championship Series | New York Yankees | 4-3 | Boston Red Sox | AL vs AL |
| NL Championship Series | Florida Marlins | 4-3 | Chicago Cubs | NL vs NL |
| AL Division Series | New York Yankees | 3-1 | Minnesota Twins | AL vs AL |
| AL Division Series | Boston Red Sox | 3-2 | Oakland Athletics | AL vs AL |
| NL Division Series | Florida Marlins | 3-1 | San Francisco Giants | NL vs NL |
| NL Division Series | Chicago Cubs | 3-2 | Atlanta Braves | NL vs NL |
Results are shown exactly as the source records them, ties included; several early series ended level and the champion column names the club the source credits. Club names are era-accurate: the 2003 clubs carry the names they used that season, and a franchise that plays today under a different name links to that modern franchise page, which owns the identity note. Round labels are our renderings of the source’s round codes; the digit on a Division Series or Wild Card code distinguishes the two concurrent pairings, not a seeding.
The records come from the SABR / Sean Lahman baseball database (2025 edition), used under Creative Commons Attribution-ShareAlike 3.0. Full credits live on our sources page.