| 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 |
| Lefty Gomez | NYA | 2.24 | 193108240_NYA_CHA |
| Lloyd Brown | MIN | 1.88 | 193108250_MIN_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Chief Hogsett | DET | -1.39 | 193108240_MIN_DET |
| Guy Bush | CHN | -1.08 | 193108242_CHN_SFN |
| Sheriff Blake | PHI | -0.74 | 193108262_CIN_PHI |
| Sam Gray | BAL | -0.54 | 193108240_OAK_BAL |
| Herb Pennock | NYA | -0.41 | 193108250_NYA_CHA |
Based on accumulated WAA for this season up to 1931-08-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 11.84 | Lefty Grove | 235.3 | OAK |
| +008+ | 8.16 | Ed Brandt | 209.7 | ATL |
| +009+ | 7.83 | Bill Walker | 198 | SFN |
| +012+ | 6.62 | Carl Hubbell | 200.7 | SFN |
| +013+ | 6.05 | Freddie Fitzsimmons | 218.7 | SFN |
| +016+ | 5.43 | Ray Kremer | 209.3 | PIT |
| +018+ | 5.29 | Ray Benge | 208.7 | PHI |
| +020+ | 5.14 | Si Johnson | 225.7 | CIN |
| +022+ | 4.93 | Lloyd Brown | 208.7 | MIN |
| +023+ | 4.91 | Lefty Gomez | 184.3 | NYA |
| +025+ | 4.82 | Larry French | 231.3 | PIT |
| +026+ | 4.75 | Tom Zachary | 180.7 | ATL |
| +027+ | 4.38 | Bill Hallahan | 188.7 | SLN |
| +032+ | 3.86 | Bob Smith | 203 | CHN |
| +033+ | 3.86 | Watty Clark | 182.7 | LAN |
| +034+ | 3.85 | Dazzy Vance | 184.7 | LAN |
| +038+ | 3.48 | Jesse Haines | 116.3 | SLN |
| +040+ | 3.44 | Heinie Meine | 217 | PIT |
| +041+ | 3.41 | Charlie Root | 202.7 | CHN |
| +042+ | 3.39 | George Earnshaw | 237 | OAK |
| +047+ | 2.86 | Glenn Spencer | 136.7 | PIT |
| +048+ | 2.82 | Fred Heimach | 111.3 | LAN |
| +049+ | 2.8 | Firpo Marberry | 169 | MIN |
| +056+ | 2.48 | George Uhle | 166 | DET |
| +057+ | 2.42 | Burleigh Grimes | 192.3 | SLN |
_