| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Grove | OAK | 15.75 | 193107010_OAK_CLE |
| Bill Walker | SFN | 4.89 | 193107010_SLN_SFN |
| Tom Zachary | ATL | 2.9 | 193106290_PIT_ATL |
| Dazzy Vance | LAN | 2.56 | 193106290_CIN_LAN |
| Lefty Stewart | BAL | 1.62 | 193106290_BOS_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ownie Carroll | CIN | -4.76 | 193107010_CIN_LAN |
| Milt Shoffner | CLE | -2.13 | 193106291_NYA_CLE |
| Sam Gray | BAL | -1.81 | 193107010_MIN_BAL |
| Les Sweetland | CHN | -1.62 | 193107010_CHN_PHI |
| Vic Frazier | CHA | -1.1 | 193106290_MIN_CHA |
Based on accumulated WAA for this season up to 1931-07-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.36 | Lefty Grove | 145 | OAK |
| +009+ | 4.42 | Lloyd Brown | 134 | MIN |
| +013+ | 3.82 | Freddie Fitzsimmons | 118.7 | SFN |
| +014+ | 3.56 | Tom Zachary | 100.7 | ATL |
| +016+ | 3.52 | Bill Hallahan | 105.3 | SLN |
| +018+ | 3.35 | Ed Brandt | 115.7 | ATL |
| +019+ | 3.27 | Si Johnson | 127.7 | CIN |
| +020+ | 3.16 | Bill Walker | 94.7 | SFN |
| +021+ | 3.12 | George Uhle | 96.3 | DET |
| +022+ | 3.06 | Rube Walberg | 139.7 | OAK |
| +026+ | 2.74 | Ray Benge | 108.7 | PHI |
| +027+ | 2.55 | Carl Hubbell | 97 | SFN |
| +029+ | 2.46 | George Earnshaw | 146.3 | OAK |
| +031+ | 2.39 | Watty Clark | 92.7 | LAN |
| +033+ | 2.23 | Ray Kremer | 112.7 | PIT |
| +034+ | 2.15 | Bob Smith | 108.3 | CHN |
| +038+ | 1.99 | Frank Watt | 50 | PHI |
| +040+ | 1.94 | Wilcy Moore | 76.7 | BOS |
| +042+ | 1.88 | Dazzy Vance | 96 | LAN |
| +044+ | 1.87 | Heinie Meine | 121.7 | PIT |
| +045+ | 1.86 | Socks Seibold | 109 | ATL |
| +047+ | 1.81 | Jack Berly | 68 | SFN |
| +049+ | 1.78 | Bump Hadley | 72.3 | MIN |
| +051+ | 1.73 | Clarence Mitchell | 108 | SFN |
| +055+ | 1.6 | Ed Morris | 69 | BOS |
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