Not enough days in 1928 season to compile WAA record.
| Date | Rank | WAA | TeamID |
|---|---|---|---|
| 19280512 | +018+ | 1.63 | NYA |
| 19280526 | +012+ | 2.54 | NYA |
| 19280609 | +007+ | 3.52 | NYA |
| 19280623 | +025+ | 2.38 | NYA |
| 19280707 | +024+ | 2.86 | NYA |
| 19280721 | +010+ | 4.66 | NYA |
| 19280804 | +006+ | 6.42 | NYA |
| 19280818 | +006+ | 7.47 | NYA |
| 19280901 | +007+ | 7.26 | NYA |
| 19280915 | +010+ | 7.24 | NYA |
| 19280930 | +012+ | 7.22 | NYA |
Herb Pennock Post Season Games
| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| +063+ | 0.25 | 3 | 0 | 0 | 1 | OAK |
| +063+ | 1.88 | 52.3 | 2.06 | 5 | 4 | NYA |
| +063+ | 2.13 | 55.3 | 1.95 | 0 | 0 | TOT |
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