| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Grove | BOS | 6.21 | 193805150_MIN_BOS |
| Johnny Allen | CLE | 4.67 | 193805160_OAK_CLE |
| Van Mungo | LAN | 4.55 | 193805150_ATL_LAN |
| Danny MacFayden | ATL | 2.68 | 193805160_ATL_LAN |
| Hal Schumacher | SFN | 2.65 | 193805160_SFN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Oral Hildebrand | BAL | -1.97 | 193805150_BAL_DET |
| Bud Thomas | OAK | -1.56 | 193805160_OAK_CLE |
| Earl Whitehill | CLE | -1.21 | 193805170_OAK_CLE |
| Ken Chase | MIN | -0.29 | 193805160_MIN_DET |
| Vern Kennedy | DET | -0.15 | 193805160_MIN_DET |
Based on accumulated WAA for this season up to 1938-05-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.03 | Bob Feller | 50 | CLE |
| +003+ | 2.78 | Lefty Grove | 60 | BOS |
| +005+ | 2.54 | Tot Pressnell | 45.7 | LAN |
| +006+ | 2.53 | Jack Wilson | 32 | BOS |
| +007+ | 2.48 | Paul Derringer | 56.3 | CIN |
| +008+ | 2.27 | Dutch Leonard | 49.7 | MIN |
| +010+ | 1.97 | Carl Hubbell | 35 | SFN |
| +011+ | 1.96 | Johnny Allen | 47.7 | CLE |
| +013+ | 1.86 | Dizzy Dean | 25.7 | CHN |
| +014+ | 1.75 | Boots Poffenberger | 23 | DET |
| +016+ | 1.71 | Milt Shoffner | 43.3 | ATL |
| +017+ | 1.66 | Bucky Walters | 51 | PHI |
| +018+ | 1.6 | Cliff Melton | 59 | SFN |
| +022+ | 1.34 | Van Mungo | 38 | LAN |
| +023+ | 1.33 | Red Ruffing | 41.3 | NYA |
| +025+ | 1.29 | Buck Ross | 34.7 | OAK |
| +026+ | 1.27 | Lynn Nelson | 28 | OAK |
| +027+ | 1.26 | Vern Kennedy | 50.7 | DET |
| XXXXX | 1.17 | Ted Lyons | 25 | CHA |
| XXXXX | 1.09 | Bill McGee | 32.3 | SLN |
| XXXXX | 0.96 | Harry Gumbert | 39.7 | SFN |
| XXXXX | 0.93 | Johnny Marcum | 37 | BOS |
| XXXXX | 0.91 | Russ Bauers | 33.3 | PIT |
| XXXXX | 0.89 | Joe Beggs | 24 | NYA |
| XXXXX | 0.81 | Red Lucas | 23.7 | PIT |
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