Not enough days in 1934 season to compile WAA record.
| Date | Rank | WAA | TeamID |
|---|---|---|---|
| 19340522 | XXXXX | -0.56 | OAK |
| 19340606 | -035- | -1.30 | OAK |
| 19340621 | -008- | -2.47 | OAK |
| 19340705 | -008- | -2.93 | OAK |
| 19340721 | -016- | -2.90 | OAK |
| 19340804 | -010- | -4.02 | OAK |
| 19340819 | -012- | -3.75 | OAK |
| 19340902 | -011- | -4.04 | OAK |
| 19340916 | -014- | -3.60 | OAK |
| 19340930 | -028- | -3.32 | OAK |
Roy Mahaffey Post Season Games
| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| XXXXX | -0.13 | 1 | 9 | 0 | 1 | OAK |
_