| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wes Ferrell | CLE | 7.19 | 193105080_BOS_CLE |
| Pat Malone | CHN | 3.77 | 193105100_CHN_SFN |
| Rube Walberg | OAK | 3.17 | 193105090_OAK_BAL |
| Carl Hubbell | SFN | 3.16 | 193105090_CHN_SFN |
| Lloyd Brown | MIN | 1.39 | 193105080_MIN_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Benge | PHI | -2.38 | 193105092_LAN_PHI |
| Larry French | PIT | -0.6 | 193105100_PIT_LAN |
| Joe Shaute | LAN | -0.26 | 193105080_LAN_PHI |
| Ed Durham | BOS | -0.23 | 193105100_BOS_CLE |
| Roy Sherid | NYA | -0.07 | 193105090_NYA_CHA |
Based on accumulated WAA for this season up to 1931-05-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.04 | Freddie Fitzsimmons | 50 | SFN |
| +002+ | 2.56 | Socks Seibold | 44 | ATL |
| +004+ | 2.14 | Lloyd Brown | 53.7 | MIN |
| +005+ | 2.08 | Burleigh Grimes | 39 | SLN |
| +008+ | 1.83 | Rube Walberg | 47.3 | OAK |
| +011+ | 1.58 | Ed Brandt | 36 | ATL |
| +016+ | 1.38 | Bill Walker | 34 | SFN |
| +018+ | 1.32 | Lefty Stewart | 38.3 | BAL |
| +017+ | 1.32 | Charlie Root | 43 | CHN |
| +022+ | 1.26 | Ray Kremer | 42 | PIT |
| XXXXX | 1.15 | Clarence Mitchell | 36 | SFN |
| XXXXX | 1.13 | Jesse Haines | 24 | SLN |
| XXXXX | 1.12 | Wilcy Moore | 32 | BOS |
| XXXXX | 1.11 | Tom Zachary | 33.3 | ATL |
| XXXXX | 1.08 | Red Lucas | 44 | CIN |
| XXXXX | 1.05 | Ed Morris | 22.3 | BOS |
| XXXXX | 1.04 | Ray Phelps | 36.3 | LAN |
| XXXXX | 1.01 | Ray Benge | 39.3 | PHI |
| XXXXX | 1.01 | Syl Johnson | 25 | SLN |
| XXXXX | 0.94 | Pat Caraway | 40.3 | CHA |
| XXXXX | 0.92 | Ed Baecht | 12 | CHN |
| XXXXX | 0.91 | Wes Ferrell | 42.3 | CLE |
| XXXXX | 0.83 | Earl Whitehill | 49 | DET |
| XXXXX | 0.79 | Pat Malone | 30.7 | CHN |
| XXXXX | 0.78 | Eddie Rommel | 19 | OAK |
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