| Starter | Tm | Tier | Game |
|---|---|---|---|
| Carl Hubbell | SFN | 6.35 | 193805282_PHI_SFN |
| Red Ruffing | NYA | 3.54 | 193805260_NYA_DET |
| Bill Lee | CHN | 2.01 | 193805270_CHN_PIT |
| Jack Wilson | BOS | 0.94 | 193805260_BOS_CLE |
| Russ Bauers | PIT | 0.94 | 193805280_CHN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jimmie DeShong | MIN | -2.16 | 193805260_MIN_BAL |
| Bill Dietrich | CHA | -1.19 | 193805260_OAK_CHA |
| Hugh Mulcahy | PHI | -1.11 | 193805281_PHI_SFN |
| Denny Galehouse | CLE | -0.51 | 193805260_BOS_CLE |
| Vern Kennedy | DET | -0.38 | 193805270_DET_CHA |
Based on accumulated WAA for this season up to 1938-05-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 3.67 | Bob Feller | 62 | CLE |
| +004+ | 3.65 | Paul Derringer | 75.7 | CIN |
| +005+ | 3.5 | Carl Hubbell | 62 | SFN |
| +006+ | 3.38 | Lefty Grove | 78 | BOS |
| +008+ | 2.49 | Jack Wilson | 52.3 | BOS |
| +010+ | 2.36 | Tot Pressnell | 65.7 | LAN |
| +012+ | 2.04 | Red Ruffing | 50.3 | NYA |
| +013+ | 2.03 | Bill McGee | 50.3 | SLN |
| +016+ | 1.93 | Johnny Allen | 65.7 | CLE |
| +017+ | 1.83 | Dizzy Dean | 25.7 | CHN |
| +021+ | 1.7 | Harry Gumbert | 58.7 | SFN |
| +022+ | 1.67 | Ted Lyons | 34 | CHA |
| +025+ | 1.58 | Milt Shoffner | 57.7 | ATL |
| +027+ | 1.51 | Lynn Nelson | 54 | OAK |
| +029+ | 1.43 | Cliff Melton | 75.3 | SFN |
| +030+ | 1.38 | Vern Kennedy | 67 | DET |
| +031+ | 1.33 | Bill Lee | 64.3 | CHN |
| +032+ | 1.31 | Larry French | 66.3 | CHN |
| +033+ | 1.3 | Buck Ross | 34.7 | OAK |
| XXXXX | 1.23 | Dutch Leonard | 63.7 | MIN |
| XXXXX | 1.2 | John Whitehead | 31.3 | CHA |
| XXXXX | 1.14 | Spud Chandler | 37 | NYA |
| XXXXX | 1.14 | Boots Poffenberger | 40 | DET |
| XXXXX | 1.05 | Van Mungo | 48.3 | LAN |
| XXXXX | 1.05 | Clay Bryant | 57 | CHN |
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