Not enough days in 1973 season to compile WAA record.
| Date | Rank | WAA | TeamID |
|---|---|---|---|
| 19730511 | +002+ | 3.63 | OAK |
| 19730525 | +001+ | 4.99 | OAK |
| 19730608 | +001+ | 5.36 | OAK |
| 19730622 | +001+ | 5.98 | OAK |
| 19730706 | +001+ | 6.68 | OAK |
| 19730720 | +001+ | 6.42 | OAK |
| 19730806 | +002+ | 7.06 | OAK |
| 19730820 | +006+ | 6.41 | OAK |
| 19730903 | +011+ | 6.01 | OAK |
| 19730917 | +014+ | 6.20 | OAK |
| 19731001 | +028+ | 5.28 | OAK |
Ken Holtzman Post Season Games
| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| +061+ | 2.13 | 70.3 | 2.3 | 12 | 1 | OAK |
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