| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Grove | OAK | 16.76 | 193107251_CLE_OAK |
| Carl Hubbell | SFN | 5.11 | 193107230_SFN_CIN |
| Watty Clark | LAN | 4.39 | 193107240_LAN_PIT |
| Charlie Root | CHN | 3.51 | 193107240_ATL_CHN |
| Wes Ferrell | CLE | 1.35 | 193107251_CLE_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ownie Carroll | CIN | -2.99 | 193107251_SFN_CIN |
| Vic Frazier | CHA | -1.84 | 193107240_CHA_BOS |
| Jack Russell | BOS | -1.71 | 193107230_CHA_BOS |
| Spades Wood | PIT | -1.21 | 193107251_LAN_PIT |
| Chief Hogsett | DET | -1.09 | 193107240_DET_NYA |
Based on accumulated WAA for this season up to 1931-07-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 9.03 | Lefty Grove | 187 | OAK |
| +011+ | 4.48 | Freddie Fitzsimmons | 162.3 | SFN |
| +013+ | 4.45 | Ed Brandt | 150.7 | ATL |
| +015+ | 4.33 | Carl Hubbell | 141.7 | SFN |
| +017+ | 4.3 | Charlie Root | 152.3 | CHN |
| +018+ | 4.2 | Bill Hallahan | 149.3 | SLN |
| +019+ | 4.12 | Lloyd Brown | 166.7 | MIN |
| +020+ | 4 | Ray Benge | 158.7 | PHI |
| +021+ | 3.93 | Ray Kremer | 160.3 | PIT |
| +022+ | 3.86 | Tom Zachary | 125.3 | ATL |
| +023+ | 3.74 | Bill Walker | 129.3 | SFN |
| +027+ | 3.55 | Watty Clark | 134.7 | LAN |
| +029+ | 3.35 | Si Johnson | 169 | CIN |
| +030+ | 3.04 | Heinie Meine | 162 | PIT |
| +032+ | 2.83 | George Earnshaw | 201 | OAK |
| +034+ | 2.73 | Larry French | 178.3 | PIT |
| +036+ | 2.53 | Rube Walberg | 185 | OAK |
| +037+ | 2.5 | Lefty Gomez | 128.7 | NYA |
| +038+ | 2.49 | Bob Smith | 151 | CHN |
| +039+ | 2.45 | Firpo Marberry | 116.7 | MIN |
| +040+ | 2.44 | Dazzy Vance | 132 | LAN |
| +043+ | 2.25 | Jack Ogden | 68.3 | CIN |
| +059+ | 1.83 | Red Lucas | 141.3 | CIN |
| +058+ | 1.83 | George Uhle | 127.3 | DET |
| +061+ | 1.81 | Bump Hadley | 101.3 | MIN |
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