| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Walker | SFN | 4.56 | 193108080_SFN_PHI |
| Tom Zachary | ATL | 2.55 | 193108070_LAN_ATL |
| Charlie Root | CHN | 2.49 | 193108080_CHN_SLN |
| Ray Kremer | PIT | 2.43 | 193108070_CIN_PIT |
| Dazzy Vance | LAN | 1.82 | 193108080_LAN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pat Caraway | CHA | -5.05 | 193108060_BAL_CHA |
| Rollie Stiles | BAL | -3.25 | 193108082_BAL_CHA |
| Jack Russell | BOS | -2.27 | 193108060_BOS_MIN |
| Red Ruffing | NYA | -1.8 | 193108080_OAK_NYA |
| Phil Collins | PHI | -1.3 | 193108070_SFN_PHI |
Based on accumulated WAA for this season up to 1931-08-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 9.63 | Lefty Grove | 198 | OAK |
| +009+ | 6.02 | Carl Hubbell | 168.7 | SFN |
| +010+ | 5.47 | Ed Brandt | 168.7 | ATL |
| +012+ | 5.38 | Freddie Fitzsimmons | 179.3 | SFN |
| +013+ | 5.16 | Bill Walker | 162 | SFN |
| +014+ | 4.93 | Ray Kremer | 185.3 | PIT |
| +016+ | 4.73 | Ray Benge | 177.7 | PHI |
| +019+ | 4.48 | Lloyd Brown | 175.3 | MIN |
| +020+ | 4.33 | Tom Zachary | 148.3 | ATL |
| +026+ | 3.99 | Dazzy Vance | 161 | LAN |
| +027+ | 3.88 | Bill Hallahan | 160.7 | SLN |
| +030+ | 3.75 | Larry French | 199.3 | PIT |
| +029+ | 3.75 | Heinie Meine | 184 | PIT |
| +031+ | 3.63 | Lefty Gomez | 147.3 | NYA |
| +032+ | 3.44 | George Earnshaw | 225 | OAK |
| +034+ | 3.05 | Firpo Marberry | 138.7 | MIN |
| +035+ | 3.03 | Si Johnson | 195.7 | CIN |
| +036+ | 3.02 | Bump Hadley | 114.3 | MIN |
| +037+ | 3.01 | Watty Clark | 151 | LAN |
| +041+ | 2.7 | Rube Walberg | 211 | OAK |
| +043+ | 2.57 | Charlie Root | 169.7 | CHN |
| +045+ | 2.55 | Fred Heimach | 84 | LAN |
| +046+ | 2.54 | Burleigh Grimes | 166.3 | SLN |
| +050+ | 2.27 | Flint Rhem | 146.3 | SLN |
| +057+ | 2.06 | Jesse Haines | 92.3 | SLN |
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