| Starter | Tm | Tier | Game |
|---|---|---|---|
| Milt Shoffner | CLE | -1.57 | 193106201_MIN_CLE |
| Guy Bush | CHN | -1.11 | 193106220_CHN_SFN |
| Spades Wood | PIT | -1.08 | 193106220_PIT_LAN |
| Fred Frankhouse | ATL | -0.68 | 193106211_SLN_ATL |
| Clise Dudley | PHI | -0.58 | 193106202_CIN_PHI |
Based on accumulated WAA for this season up to 1931-06-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.2 | Lefty Grove | 118 | OAK |
| +007+ | 4.28 | Freddie Fitzsimmons | 110 | SFN |
| +009+ | 3.87 | Tom Zachary | 82.7 | ATL |
| +010+ | 3.81 | Lloyd Brown | 120.3 | MIN |
| +014+ | 3.35 | Si Johnson | 112.7 | CIN |
| +015+ | 3.31 | George Earnshaw | 129.3 | OAK |
| +018+ | 3.06 | Bill Hallahan | 90 | SLN |
| +021+ | 2.92 | Clarence Mitchell | 98 | SFN |
| +022+ | 2.91 | Charlie Root | 93.3 | CHN |
| +023+ | 2.86 | George Uhle | 77.3 | DET |
| +024+ | 2.76 | Rube Walberg | 123.7 | OAK |
| +026+ | 2.61 | Heinie Meine | 115 | PIT |
| +027+ | 2.6 | Ed Brandt | 102 | ATL |
| +031+ | 2.43 | Burleigh Grimes | 98.7 | SLN |
| +032+ | 2.36 | Ed Morris | 56.3 | BOS |
| +033+ | 2.24 | Watty Clark | 86 | LAN |
| +037+ | 2.02 | Ray Benge | 92 | PHI |
| +038+ | 1.87 | Ray Kremer | 96.7 | PIT |
| +042+ | 1.74 | Bill Walker | 72.7 | SFN |
| +043+ | 1.67 | Jack Berly | 61 | SFN |
| +044+ | 1.65 | Red Lucas | 99.7 | CIN |
| +047+ | 1.6 | Socks Seibold | 96 | ATL |
| +046+ | 1.6 | Jim Lindsey | 31.7 | SLN |
| +048+ | 1.57 | Larry French | 119.3 | PIT |
| +049+ | 1.56 | Clise Dudley | 78.7 | PHI |
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