Not enough days in 1991 season to compile WAA record.
| Date | Rank | WAA | TeamID |
|---|---|---|---|
| 19910418 | XXXXX | 0.52 | DET |
| 19910502 | XXXXX | 1.03 | DET |
| 19910516 | XXXXX | 0.86 | DET |
| 19910530 | +033+ | 1.75 | DET |
| 19910613 | XXXXX | 1.03 | DET |
| 19910627 | XXXXX | 0.73 | DET |
| 19910714 | +101+ | 1.63 | DET |
| 19910728 | +109+ | 1.75 | DET |
| 19910811 | +093+ | 2.16 | DET |
| 19910825 | +100+ | 2.15 | DET |
| 19910908 | +122+ | 2.16 | DET |
| 19910922 | +146+ | 1.82 | DET |
| 19911006 | +140+ | 2.03 | DET |
Mike Henneman Post Season Games
| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| XXXXX | -1.05 | 5 | 12.6 | 0 | 3 | DET |
| XXXXX | 0.08 | 1 | 0 | 0 | 3 | TEX |
| XXXXX | -0.97 | 6 | 10.5 | 0 | 0 | TOT |
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