| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Grove | BOS | 7.4 | 193805200_BOS_BAL |
| Carl Hubbell | SFN | 6.19 | 193805180_CHN_SFN |
| Johnny Allen | CLE | 5.24 | 193805200_MIN_CLE |
| Van Mungo | LAN | 3.6 | 193805200_PIT_LAN |
| Lou Fette | ATL | 1.11 | 193805190_PIT_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wes Ferrell | MIN | -2.09 | 193805180_MIN_DET |
| Jim Walkup | BAL | -1.92 | 193805200_BOS_BAL |
| Bud Thomas | OAK | -1.36 | 193805200_OAK_DET |
| Hugh Mulcahy | PHI | -1.1 | 193805190_CIN_PHI |
| Schoolboy Rowe | DET | -0.44 | 193805200_OAK_DET |
Based on accumulated WAA for this season up to 1938-05-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.52 | Bob Feller | 59 | CLE |
| +003+ | 3.32 | Lefty Grove | 69 | BOS |
| +004+ | 2.76 | Tot Pressnell | 54 | LAN |
| +006+ | 2.51 | Paul Derringer | 56.3 | CIN |
| +008+ | 2.24 | Johnny Allen | 56.7 | CLE |
| +009+ | 2.22 | Carl Hubbell | 44 | SFN |
| +010+ | 2.06 | Jack Wilson | 35.3 | BOS |
| +012+ | 1.86 | Dizzy Dean | 25.7 | CHN |
| +014+ | 1.73 | Harry Gumbert | 49.7 | SFN |
| +017+ | 1.59 | Cliff Melton | 59 | SFN |
| +018+ | 1.59 | Milt Shoffner | 43.3 | ATL |
| +021+ | 1.44 | Dutch Leonard | 51.3 | MIN |
| +020+ | 1.44 | Bob Klinger | 19.7 | PIT |
| +026+ | 1.35 | Red Ruffing | 41.3 | NYA |
| +027+ | 1.33 | Buck Ross | 34.7 | OAK |
| +029+ | 1.29 | Van Mungo | 43.7 | LAN |
| XXXXX | 1.24 | Vern Kennedy | 50.7 | DET |
| XXXXX | 1.2 | Ted Lyons | 25 | CHA |
| XXXXX | 1.14 | John Whitehead | 24.3 | CHA |
| XXXXX | 1.13 | Bill McGee | 32.3 | SLN |
| XXXXX | 1.11 | Boots Poffenberger | 27 | DET |
| XXXXX | 0.97 | Johnny Marcum | 37 | BOS |
| XXXXX | 0.91 | Willis Hudlin | 39 | CLE |
| XXXXX | 0.9 | Joe Beggs | 24 | NYA |
| XXXXX | 0.85 | Russ Bauers | 33.3 | PIT |
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