| Starter | Tm | Tier | Game |
|---|---|---|---|
| Carl Hubbell | SFN | 6.19 | 193805180_CHN_SFN |
| Johnny Allen | CLE | 4.67 | 193805160_OAK_CLE |
| Danny MacFayden | ATL | 2.68 | 193805160_ATL_LAN |
| Paul Derringer | CIN | 1.26 | 193805170_CIN_PHI |
| Tex Carleton | CHN | 1.21 | 193805170_CHN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wes Ferrell | MIN | -2.09 | 193805180_MIN_DET |
| Bud Thomas | OAK | -1.56 | 193805160_OAK_CLE |
| Earl Whitehill | CLE | -1.21 | 193805170_OAK_CLE |
| Vern Kennedy | DET | -0.15 | 193805160_MIN_DET |
| Bobo Newsom | BAL | -0.09 | 193805180_NYA_BAL |
Based on accumulated WAA for this season up to 1938-05-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.48 | Bob Feller | 59 | CLE |
| +004+ | 2.76 | Lefty Grove | 60 | BOS |
| +005+ | 2.61 | Tot Pressnell | 50.7 | LAN |
| +006+ | 2.52 | Jack Wilson | 32 | BOS |
| +007+ | 2.46 | Paul Derringer | 56.3 | CIN |
| +008+ | 2.26 | Dutch Leonard | 49.7 | MIN |
| +009+ | 2.21 | Carl Hubbell | 44 | SFN |
| +011+ | 1.95 | Johnny Allen | 47.7 | CLE |
| +013+ | 1.85 | Dizzy Dean | 25.7 | CHN |
| +015+ | 1.64 | Bucky Walters | 51 | PHI |
| +016+ | 1.6 | Milt Shoffner | 43.3 | ATL |
| +017+ | 1.58 | Cliff Melton | 59 | SFN |
| +020+ | 1.43 | Bob Klinger | 19.7 | PIT |
| +024+ | 1.33 | Van Mungo | 38 | LAN |
| +025+ | 1.32 | Red Ruffing | 41.3 | NYA |
| +028+ | 1.29 | Buck Ross | 34.7 | OAK |
| +029+ | 1.27 | Lynn Nelson | 28 | OAK |
| XXXXX | 1.23 | Vern Kennedy | 50.7 | DET |
| XXXXX | 1.16 | Ted Lyons | 25 | CHA |
| XXXXX | 1.1 | Boots Poffenberger | 27 | DET |
| XXXXX | 1.09 | Bill McGee | 32.3 | SLN |
| XXXXX | 0.95 | Harry Gumbert | 39.7 | SFN |
| XXXXX | 0.91 | Johnny Marcum | 37 | BOS |
| XXXXX | 0.88 | Joe Beggs | 24 | NYA |
| XXXXX | 0.83 | Russ Bauers | 33.3 | PIT |
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