| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Walker | SFN | 6.23 | 193108261_CHN_SFN |
| Tom Zachary | ATL | 2.66 | 193108262_SLN_ATL |
| Ray Kremer | PIT | 2.61 | 193108252_PIT_LAN |
| Lloyd Brown | MIN | 1.88 | 193108250_MIN_DET |
| Si Johnson | CIN | 1.77 | 193108252_CIN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pat Caraway | CHA | -5.83 | 193108270_CHA_DET |
| Stew Bolen | PHI | -2.8 | 193108270_CIN_PHI |
| Ray Kolp | CIN | -0.9 | 193108270_CIN_PHI |
| Les Sweetland | CHN | -0.81 | 193108271_CHN_PIT |
| Art Herring | DET | -0.48 | 193108250_MIN_DET |
Based on accumulated WAA for this season up to 1931-08-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 11.87 | Lefty Grove | 235.3 | OAK |
| +008+ | 8.19 | Ed Brandt | 209.7 | ATL |
| +009+ | 7.86 | Bill Walker | 198 | SFN |
| +012+ | 6.65 | Carl Hubbell | 200.7 | SFN |
| +013+ | 6.08 | Freddie Fitzsimmons | 218.7 | SFN |
| +016+ | 5.46 | Ray Kremer | 209.3 | PIT |
| +017+ | 5.32 | Ray Benge | 208.7 | PHI |
| +020+ | 5.18 | Si Johnson | 225.7 | CIN |
| +022+ | 4.96 | Lloyd Brown | 208.7 | MIN |
| +023+ | 4.93 | Lefty Gomez | 184.3 | NYA |
| +025+ | 4.85 | Larry French | 231.3 | PIT |
| +026+ | 4.77 | Tom Zachary | 180.7 | ATL |
| +027+ | 4.41 | Bill Hallahan | 188.7 | SLN |
| +032+ | 3.91 | Bob Smith | 203 | CHN |
| +033+ | 3.89 | Watty Clark | 182.7 | LAN |
| +034+ | 3.87 | Dazzy Vance | 184.7 | LAN |
| +037+ | 3.49 | Jesse Haines | 116.3 | SLN |
| +038+ | 3.47 | Heinie Meine | 217 | PIT |
| +039+ | 3.46 | Charlie Root | 202.7 | CHN |
| +040+ | 3.42 | George Earnshaw | 237 | OAK |
| +043+ | 3.32 | Glenn Spencer | 145.7 | PIT |
| +048+ | 2.84 | Fred Heimach | 111.3 | LAN |
| +049+ | 2.82 | Firpo Marberry | 169 | MIN |
| +055+ | 2.5 | George Uhle | 166 | DET |
| +058+ | 2.45 | Burleigh Grimes | 192.3 | SLN |
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