Research & Reports
Team Records
Baltimore Birds : ERA
| Team | Season | ERA |
| Baltimore Birds | 153 | 2.934 |
| Baltimore Birds | 151 | 3.067 |
| Baltimore Birds | 150 | 3.072 |
| Baltimore Birds | 152 | 3.188 |
| Baltimore Birds | 147 | 3.315 |
| Baltimore Birds | 146 | 3.350 |
| Baltimore Birds | 133 | 3.417 |
| Baltimore Birds | 135 | 3.433 |
| Baltimore Birds | 145 | 3.499 |
| Baltimore Birds | 149 | 3.536 |
| Baltimore Birds | 148 | 3.577 |
| Baltimore Birds | 136 | 3.607 |
| Baltimore Birds | 137 | 3.647 |
| Baltimore Birds | 139 | 3.660 |
| Baltimore Birds | 134 | 3.665 |
| Baltimore Birds | 155 | 3.742 |
| Baltimore Birds | 141 | 3.888 |
| Baltimore Birds | 144 | 3.920 |
| Baltimore Birds | 143 | 3.959 |
| Baltimore Birds | 142 | 3.979 |
| Baltimore Birds | 132 | 4.158 |
| Baltimore Birds | 154 | 4.416 |
| Baltimore Birds | 138 | 4.458 |
| Baltimore Birds | 140 | 4.584 |
