| 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 |
| Lefty Gomez | NYA | 2.24 | 193108240_NYA_CHA |
| 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 1931-08-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 11.92 | Lefty Grove | 235.3 | OAK |
| +008+ | 8.26 | Ed Brandt | 209.7 | ATL |
| +009+ | 7.61 | Bill Walker | 190 | SFN |
| +011+ | 6.51 | Carl Hubbell | 191.7 | SFN |
| +012+ | 6.3 | Freddie Fitzsimmons | 215.3 | SFN |
| +015+ | 5.67 | Ray Kremer | 202.3 | PIT |
| +017+ | 5.22 | Ray Benge | 202.7 | PHI |
| +018+ | 5.21 | Tom Zachary | 173.7 | ATL |
| +020+ | 4.96 | Lefty Gomez | 184.3 | NYA |
| +022+ | 4.9 | Larry French | 231.3 | PIT |
| +024+ | 4.72 | Si Johnson | 218.7 | CIN |
| +025+ | 4.41 | Lloyd Brown | 200.3 | MIN |
| +030+ | 4.01 | Bill Hallahan | 181.7 | SLN |
| +031+ | 3.93 | Dazzy Vance | 184.7 | LAN |
| +033+ | 3.89 | Watty Clark | 175.7 | LAN |
| +037+ | 3.56 | Charlie Root | 196.7 | CHN |
| +039+ | 3.4 | George Earnshaw | 236.3 | OAK |
| +040+ | 3.35 | Bob Smith | 196.7 | CHN |
| +041+ | 3.27 | Heinie Meine | 208 | PIT |
| +042+ | 3.14 | Larry Benton | 152.7 | CIN |
| +046+ | 2.9 | Glenn Spencer | 136.7 | PIT |
| +047+ | 2.87 | Jesse Haines | 107.3 | SLN |
| +048+ | 2.85 | Firpo Marberry | 169 | MIN |
| +050+ | 2.74 | Rube Walberg | 236 | OAK |
| +053+ | 2.58 | Jakie May | 67.7 | CHN |
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