| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Stewart | BAL | 6.07 | 193104300_BAL_CHA |
| Charlie Root | CHN | 4.52 | 193105020_CHN_SLN |
| Bill Walker | SFN | 3.82 | 193105010_ATL_SFN |
| Rube Walberg | OAK | 2.81 | 193104300_NYA_OAK |
| Willis Hudlin | CLE | 2.18 | 193104300_CLE_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Claude Willoughby | PIT | -5.07 | 193105020_CIN_PIT |
| Hank Johnson | NYA | -1.95 | 193104300_NYA_OAK |
| Garland Braxton | CHA | -1.88 | 193104300_BAL_CHA |
| Bill Sherdel | ATL | -1.36 | 193105010_ATL_SFN |
| Phil Collins | PHI | -1.16 | 193105010_PHI_LAN |
Based on accumulated WAA for this season up to 1931-05-02.
| Rank | WAA | Name | IP | Tm |
|---|
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