Today is day 27 of the 1903 season
1903-05-12 MLB Standings
NL 1903-05-12
| Tm | W | L | BAT | PITCH | UR | dPE | |
| SFN | 14 | 5 | 41.7 | -3.1 | 14.6 | -2.2 | |
| CHN | 15 | 8 | -4.2 | -0.8 | 17.7 | 4.3 | |
| PIT | 15 | 9 | 18.9 | -22.5 | 18.5 | 2.9 | |
| CIN | 11 | 11 | -5.8 | -12.1 | 17.0 | 0.2 | |
| LAN | 10 | 11 | -18.5 | -18.4 | 16.2 | 3.3 | |
| ATL | 9 | 10 | -10.3 | -11.1 | 14.6 | 0.4 | |
| SLN | 7 | 16 | -27.7 | -43.8 | 17.7 | 2.3 | |
| PHI | 5 | 16 | -16.5 | -33.4 | 16.2 | -3.9 | |
AL 1903-05-12
| Tm | W | L | BAT | PITCH | UR | dPE | |
| CHA | 12 | 6 | 20.6 | 27.6 | -28.1 | 1.8 | |
| OAK | 12 | 8 | 19.9 | 32.2 | -4.6 | -6.0 | |
| BAL | 8 | 7 | 5.1 | 16.7 | -13.4 | -0.8 | |
| BOS | 10 | 9 | 7.7 | 11.9 | -10.4 | -0.9 | |
| NYA | 9 | 9 | -1.9 | 15.6 | -4.1 | -2.0 | |
| DET | 8 | 10 | 6.1 | 26.6 | -11.1 | -6.5 | |
| CLE | 6 | 9 | -8.9 | 10.7 | -33.4 | 3.6 | |
| MIN | 5 | 12 | -17.6 | -4.7 | -28.9 | 3.8 | |