| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| +035+ | 5.86 | 203.3 | 3.50 | 31 | 0 | BAL |
| Date | Rank | WAA | TeamID |
|---|---|---|---|
| 19990424 | XXXXX | -0.69 | BAL |
| 19990508 | XXXXX | 0.08 | BAL |
| 19990522 | XXXXX | 0.35 | BAL |
| 19990605 | XXXXX | 1.20 | BAL |
| 19990619 | +041+ | 2.84 | BAL |
| 19990703 | +039+ | 3.23 | BAL |
| 19990720 | +031+ | 4.02 | BAL |
| 19990803 | +033+ | 4.41 | BAL |
| 19990817 | +036+ | 4.82 | BAL |
| 19990831 | +036+ | 4.96 | BAL |
| 19990914 | +051+ | 4.73 | BAL |
| 19990928 | +045+ | 5.15 | BAL |
| 19991001 | +035+ | 5.86 | BAL |
| 19991004 | +038+ | 5.81 | BAL |
Mike Mussina Post Season Games
| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| XXXXX | 1.06 | 42.7 | 2.53 | 6 | 0 | BAL |
| XXXXX | -0.48 | 97 | 3.8 | 15 | 2 | NYA |
| XXXXX | 0.58 | 139.7 | 3.42 | 0 | 0 | TOT |
_