| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| +152+ | 1.38 | 239.7 | 3.42 | 34 | 2 | NYN |
| Date | Rank | WAA | TeamID |
|---|---|---|---|
| 19750511 | -023- | -1.33 | NYN |
| 19750525 | XXXXX | -1.21 | NYN |
| 19750608 | XXXXX | -0.92 | NYN |
| 19750622 | XXXXX | -0.42 | NYN |
| 19750706 | XXXXX | -0.17 | NYN |
| 19750723 | XXXXX | 0.96 | NYN |
| 19750806 | XXXXX | 0.31 | NYN |
| 19750820 | XXXXX | -0.09 | NYN |
| 19750903 | XXXXX | -0.13 | NYN |
| 19750917 | XXXXX | 1.18 | NYN |
| 19750928 | +152+ | 1.38 | NYN |
Jerry Koosman Post Season Games
| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| XXXXX | -0.18 | 0.3 | 27 | 0 | 1 | CHA |
| XXXXX | 0.2 | 40 | 3.38 | 6 | 0 | NYN |
| XXXXX | 0.02 | 40.3 | 3.57 | 0 | 0 | TOT |
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