| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Grove | OAK | 5.33 | 193105120_OAK_CHA |
| Pat Malone | CHN | 3.77 | 193105100_CHN_SFN |
| Freddie Fitzsimmons | SFN | 1.98 | 193105100_CHN_SFN |
| Dazzy Vance | LAN | 1.5 | 193105110_PIT_LAN |
| Pat Caraway | CHA | 0.71 | 193105120_OAK_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Heinie Meine | PIT | -0.77 | 193105110_PIT_LAN |
| Phil Collins | PHI | -0.7 | 193105110_SLN_PHI |
| Bruce Cunningham | ATL | -0.36 | 193105122_CIN_ATL |
| Jack Russell | BOS | -0.27 | 193105120_BOS_DET |
| Larry Benton | CIN | -0.25 | 193105121_CIN_ATL |
Based on accumulated WAA for this season up to 1931-05-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.98 | Freddie Fitzsimmons | 50 | SFN |
| +002+ | 2.5 | Socks Seibold | 44 | ATL |
| +004+ | 2.1 | Lloyd Brown | 53.7 | MIN |
| +005+ | 2.06 | Burleigh Grimes | 39 | SLN |
| +007+ | 1.96 | Ed Brandt | 45 | ATL |
| +011+ | 1.77 | Rube Walberg | 47.3 | OAK |
| +019+ | 1.36 | Lefty Grove | 32 | OAK |
| +020+ | 1.35 | Bill Walker | 34 | SFN |
| +025+ | 1.28 | Lefty Stewart | 38.3 | BAL |
| +024+ | 1.28 | Charlie Root | 43 | CHN |
| XXXXX | 1.21 | Ray Kremer | 42 | PIT |
| XXXXX | 1.12 | Jesse Haines | 24 | SLN |
| XXXXX | 1.11 | Clarence Mitchell | 36 | SFN |
| XXXXX | 1.1 | Heinie Meine | 52 | PIT |
| XXXXX | 1.1 | Wilcy Moore | 32 | BOS |
| XXXXX | 1.06 | Tom Zachary | 33.3 | ATL |
| XXXXX | 1.05 | Phil Collins | 30.7 | PHI |
| XXXXX | 1.04 | Red Lucas | 44 | CIN |
| XXXXX | 1.03 | Ed Morris | 22.3 | BOS |
| XXXXX | 1 | Syl Johnson | 25 | SLN |
| XXXXX | 0.99 | Ray Phelps | 36.3 | LAN |
| XXXXX | 0.98 | Ray Benge | 39.3 | PHI |
| XXXXX | 0.91 | Ed Baecht | 12 | CHN |
| XXXXX | 0.9 | Pat Caraway | 49.3 | CHA |
| XXXXX | 0.86 | Wes Ferrell | 42.3 | CLE |
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