| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| +119+ | 1.77 | 245.0 | 3.27 | 32 | 0 | NYN |
| Date | Rank | WAA | TeamID |
|---|---|---|---|
| 19740508 | +023+ | 1.57 | NYN |
| 19740522 | +055+ | 1.28 | NYN |
| 19740605 | XXXXX | 1.10 | NYN |
| 19740619 | XXXXX | 0.56 | NYN |
| 19740703 | +072+ | 1.71 | NYN |
| 19740717 | XXXXX | 0.83 | NYN |
| 19740803 | +097+ | 1.74 | NYN |
| 19740817 | +126+ | 1.41 | NYN |
| 19740831 | +112+ | 1.69 | NYN |
| 19740914 | +127+ | 1.63 | NYN |
| 19740918 | +119+ | 1.77 | NYN |
| 19741002 | XXXXX | 1.33 | NYN |
Jerry Koosman Post Season Games
| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| XXXXX | -0.18 | 0.3 | 27 | 0 | 1 | CHA |
| XXXXX | 0.21 | 40 | 3.38 | 6 | 0 | NYN |
| XXXXX | 0.03 | 40.3 | 3.57 | 0 | 0 | TOT |
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