| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Grove | OAK | 15.57 | 193106270_OAK_DET |
| Carl Hubbell | SFN | 4.18 | 193106290_SLN_SFN |
| George Uhle | DET | 3.41 | 193106282_OAK_DET |
| Charlie Root | CHN | 3.22 | 193106281_CHN_ATL |
| Tom Zachary | ATL | 2.9 | 193106290_PIT_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ownie Carroll | CIN | -4.77 | 193106270_CIN_SFN |
| Milt Shoffner | CLE | -2.13 | 193106291_NYA_CLE |
| Sam Gray | BAL | -1.87 | 193106281_BOS_BAL |
| Ed Durham | BOS | -1.12 | 193106282_BOS_BAL |
| Vic Frazier | CHA | -1.1 | 193106290_MIN_CHA |
Based on accumulated WAA for this season up to 1931-06-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.09 | Lefty Grove | 136 | OAK |
| +008+ | 4.32 | Lloyd Brown | 134 | MIN |
| +012+ | 3.8 | Freddie Fitzsimmons | 118.7 | SFN |
| +014+ | 3.54 | Tom Zachary | 100.7 | ATL |
| +015+ | 3.49 | Bill Hallahan | 105.3 | SLN |
| +017+ | 3.33 | Ed Brandt | 115.7 | ATL |
| +018+ | 3.24 | Si Johnson | 127.7 | CIN |
| +020+ | 3.15 | George Uhle | 96.3 | DET |
| +021+ | 3.04 | Rube Walberg | 139.7 | OAK |
| +022+ | 3.02 | George Earnshaw | 137.3 | OAK |
| +025+ | 2.72 | Ray Benge | 108.7 | PHI |
| +027+ | 2.68 | Bill Walker | 85.7 | SFN |
| +029+ | 2.58 | Clarence Mitchell | 104 | SFN |
| +031+ | 2.53 | Carl Hubbell | 97 | SFN |
| +033+ | 2.38 | Watty Clark | 92.7 | LAN |
| +034+ | 2.33 | Clise Dudley | 87.7 | PHI |
| +036+ | 2.2 | Ray Kremer | 112.7 | PIT |
| +038+ | 2.12 | Bob Smith | 108.3 | CHN |
| +039+ | 1.98 | Frank Watt | 50 | PHI |
| +042+ | 1.93 | Wilcy Moore | 76.7 | BOS |
| +044+ | 1.86 | Dazzy Vance | 96 | LAN |
| +046+ | 1.83 | Heinie Meine | 121.7 | PIT |
| +047+ | 1.8 | Jack Berly | 68 | SFN |
| +053+ | 1.59 | Ed Morris | 69 | BOS |
| +056+ | 1.52 | Charlie Root | 102.3 | CHN |
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