| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Grove | OAK | 5.71 | 193104220_MIN_OAK |
| Lefty Stewart | BAL | 5.07 | 193104230_BAL_DET |
| Wes Ferrell | CLE | 3.29 | 193104230_CLE_CHA |
| Milt Gaston | BOS | 2.34 | 193104210_BOS_MIN |
| Firpo Marberry | MIN | 2.31 | 193104210_BOS_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Benge | PHI | -4.82 | 193104220_PHI_SFN |
| Pete Donohue | SFN | -4.8 | 193104210_SFN_ATL |
| Ed Brandt | ATL | -2.36 | 193104210_SFN_ATL |
| Garland Braxton | CHA | -1.47 | 193104230_CLE_CHA |
| Roy Mahaffey | OAK | -0.48 | 193104210_OAK_NYA |
Based on accumulated WAA for this season up to 1931-04-23.
| Rank | WAA | Name | IP | Tm |
|---|
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