Tm links to franchise history.
Division links to team status for 1903
Team Name links to list of players who played for that team during 1903 sorted by career value
| Tm | Div | Team Name | W-L | |
|---|---|---|---|---|
| ATL | NL | Boston Beaneaters | 58-80 | |
| CHN | NL | Chicago Cubs | 82-56 | |
| CIN | NL | Cincinnati Reds | 74-65 | |
| LAN | NL | Brooklyn Superbas | 70-66 | |
| PHI | NL | Philadelphia Phillies | 49-86 | |
| PIT | NL | Pittsburgh Pirates | 91-49 | WS LOSE |
| SFN | NL | New York Giants | 84-55 | |
| SLN | NL | St. Louis Cardinals | 43-94 | |
| BAL | AL | St. Louis Browns | 65-74 | |
| BOS | AL | Boston Americans | 91-47 | WS WIN |
| CHA | AL | Chicago White Sox | 60-77 | |
| CLE | AL | Cleveland Naps | 77-63 | |
| DET | AL | Detroit Tigers | 65-71 | |
| MIN | AL | Washington Senators | 43-94 | |
| NYA | AL | New York Highlanders | 72-62 | |
| OAK | AL | Philadelphia Athletics | 75-60 |
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