| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Grove | OAK | 15.4 | 193108231_OAK_BAL |
| Bill Walker | SFN | 6.46 | 193108222_CIN_SFN |
| Ed Brandt | ATL | 4.56 | 193108232_SLN_ATL |
| Lloyd Brown | MIN | 1.98 | 193108210_MIN_CLE |
| Dazzy Vance | LAN | 1.44 | 193108232_PIT_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pat Caraway | CHA | -5.37 | 193108220_OAK_CHA |
| Waite Hoyt | OAK | -2.64 | 193108232_OAK_BAL |
| Jack Russell | BOS | -2.19 | 193108220_BOS_DET |
| Garland Braxton | BAL | -1.82 | 193108220_NYA_BAL |
| Red Ruffing | NYA | -1.6 | 193108231_NYA_CHA |
Based on accumulated WAA for this season up to 1931-08-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 11.9 | Lefty Grove | 235.3 | OAK |
| +008+ | 8.25 | Ed Brandt | 209.7 | ATL |
| +009+ | 7.6 | Bill Walker | 190 | SFN |
| +011+ | 6.5 | Carl Hubbell | 191.7 | SFN |
| +013+ | 5.65 | Ray Kremer | 202.3 | PIT |
| +014+ | 5.62 | Freddie Fitzsimmons | 206.3 | SFN |
| +016+ | 5.21 | Ray Benge | 202.7 | PHI |
| +017+ | 5.2 | Tom Zachary | 173.7 | ATL |
| +018+ | 5.14 | Lefty Gomez | 175.3 | NYA |
| +022+ | 4.88 | Larry French | 231.3 | PIT |
| +024+ | 4.7 | Si Johnson | 218.7 | CIN |
| +025+ | 4.53 | Lloyd Brown | 199.7 | MIN |
| +030+ | 3.99 | Bill Hallahan | 181.7 | SLN |
| +031+ | 3.91 | Dazzy Vance | 184.7 | LAN |
| +033+ | 3.87 | Watty Clark | 175.7 | LAN |
| +036+ | 3.53 | Charlie Root | 196.7 | CHN |
| +038+ | 3.38 | George Earnshaw | 236.3 | OAK |
| +039+ | 3.29 | Bob Smith | 187.7 | CHN |
| +040+ | 3.26 | Heinie Meine | 208 | PIT |
| +041+ | 3.12 | Larry Benton | 152.7 | CIN |
| +044+ | 2.95 | Firpo Marberry | 163.7 | MIN |
| +047+ | 2.89 | Glenn Spencer | 136.7 | PIT |
| +048+ | 2.86 | Jesse Haines | 107.3 | SLN |
| +049+ | 2.72 | Rube Walberg | 236 | OAK |
| +054+ | 2.57 | Jakie May | 67.7 | CHN |
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