| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pat Malone | CHN | 3.76 | 193105230_PIT_CHN |
| Dazzy Vance | LAN | 2.37 | 193105221_LAN_PHI |
| Eddie Rommel | OAK | 1.85 | 193105210_OAK_DET |
| Lloyd Brown | MIN | 1.71 | 193105230_MIN_NYA |
| Wes Ferrell | CLE | 0.95 | 193105230_CHA_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Benge | PHI | -2.02 | 193105221_LAN_PHI |
| Ed Durham | BOS | -0.52 | 193105230_BOS_OAK |
| Heinie Meine | PIT | -0.33 | 193105230_PIT_CHN |
| Vic Frazier | CHA | -0.3 | 193105230_CHA_CLE |
| Tommy Bridges | DET | -0.24 | 193105210_OAK_DET |
Based on accumulated WAA for this season up to 1931-05-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 2.79 | Burleigh Grimes | 48 | SLN |
| +007+ | 2.66 | Freddie Fitzsimmons | 57 | SFN |
| +006+ | 2.66 | Ed Brandt | 54 | ATL |
| +009+ | 2.45 | Lefty Grove | 52.3 | OAK |
| +010+ | 2.43 | Pat Caraway | 67.3 | CHA |
| +013+ | 2.24 | Lloyd Brown | 77 | MIN |
| +014+ | 2.23 | Bill Walker | 43 | SFN |
| +016+ | 2.18 | Socks Seibold | 49 | ATL |
| +019+ | 2 | Jack Berly | 29 | SFN |
| +021+ | 1.91 | Red Lucas | 63 | CIN |
| +023+ | 1.75 | Tom Zachary | 42.3 | ATL |
| +026+ | 1.66 | Clarence Mitchell | 46 | SFN |
| +027+ | 1.65 | Rube Walberg | 66 | OAK |
| +030+ | 1.53 | Eddie Rommel | 29.3 | OAK |
| +031+ | 1.39 | Heinie Meine | 67 | PIT |
| +032+ | 1.38 | Wilcy Moore | 40.3 | BOS |
| +033+ | 1.37 | Earl Whitehill | 69 | DET |
| +034+ | 1.37 | Sam Jones | 50.7 | MIN |
| +036+ | 1.33 | Jesse Haines | 30 | SLN |
| XXXXX | 1.11 | Ed Morris | 22.3 | BOS |
| XXXXX | 1.08 | Ray Benge | 55.3 | PHI |
| XXXXX | 1.02 | Dazzy Vance | 43 | LAN |
| XXXXX | 1.02 | Syl Johnson | 29 | SLN |
| XXXXX | 1 | Clyde Day | 23.3 | LAN |
| XXXXX | 0.93 | Bill Hallahan | 37 | SLN |
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