Research & Reports
Team Records
| Team | Season | ERA |
| Golden State Prestonbetts | 130 | 3.471 |
| Golden State Prestonbetts | 116 | 3.650 |
| Golden State Prestonbetts | 114 | 4.000 |
| Golden State Prestonbetts | 113 | 4.274 |
| Golden State Prestonbetts | 132 | 4.525 |
| Golden State Prestonbetts | 115 | 4.627 |
| Golden State Prestonbetts | 131 | 4.641 |
| Golden State Prestonbetts | 126 | 5.128 |
| Golden State Prestonbetts | 127 | 5.175 |
| Golden State Prestonbetts | 128 | 5.562 |
| Golden State Prestonbetts | 125 | 5.925 |
