Research & Reports
Team Records
Baltimore Oriole : ERA
| Team | Season | ERA |
| Baltimore Oriole | 127 | 4.235 |
| Baltimore Oriole | 126 | 5.014 |
| Baltimore Oriole | 130 | 5.440 |
| Baltimore Oriole | 132 | 6.353 |
| Baltimore Oriole | 131 | 6.670 |
