| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Feller | CLE | 2.59 | 193805120_CLE_NYA |
| Monte Pearson | NYA | 1.3 | 193805130_OAK_NYA |
| Jim Turner | ATL | 1.2 | 193805140_ATL_LAN |
| Paul Derringer | CIN | 0.96 | 193805120_ATL_CIN |
| Jack Wilson | BOS | 0.67 | 193805130_MIN_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roxie Lawson | DET | -2.51 | 193805120_DET_MIN |
| Jim Walkup | BAL | -1.98 | 193805130_BAL_DET |
| Wes Ferrell | MIN | -1.6 | 193805130_MIN_BOS |
| Willis Hudlin | CLE | -0.4 | 193805130_CHA_CLE |
| Lynn Nelson | OAK | -0.27 | 193805140_OAK_NYA |
Based on accumulated WAA for this season up to 1938-05-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.03 | Bob Feller | 50 | CLE |
| +004+ | 2.51 | Jack Wilson | 32 | BOS |
| +005+ | 2.49 | Lefty Grove | 51 | BOS |
| +006+ | 2.4 | Tot Pressnell | 44.3 | LAN |
| +007+ | 2.19 | Dutch Leonard | 49.7 | MIN |
| +008+ | 1.99 | Carl Hubbell | 35 | SFN |
| +010+ | 1.89 | Dizzy Dean | 25.7 | CHN |
| +011+ | 1.88 | Van Mungo | 33 | LAN |
| +012+ | 1.78 | Paul Derringer | 47.3 | CIN |
| +014+ | 1.7 | Boots Poffenberger | 23 | DET |
| +016+ | 1.61 | Peaches Davis | 36.7 | CIN |
| +019+ | 1.49 | Vern Kennedy | 41.7 | DET |
| +020+ | 1.36 | Bucky Walters | 42 | PHI |
| +022+ | 1.34 | Lon Warneke | 33 | SLN |
| +023+ | 1.31 | Red Ruffing | 41.3 | NYA |
| +024+ | 1.28 | Johnny Allen | 38.7 | CLE |
| XXXXX | 1.25 | Buck Ross | 34.7 | OAK |
| XXXXX | 1.24 | Lynn Nelson | 28 | OAK |
| XXXXX | 1.21 | Lou Fette | 32 | ATL |
| XXXXX | 1.17 | Cliff Melton | 48 | SFN |
| XXXXX | 1.15 | Ted Lyons | 25 | CHA |
| XXXXX | 0.98 | Harry Gumbert | 39.7 | SFN |
| XXXXX | 0.97 | Hal Schumacher | 35.3 | SFN |
| XXXXX | 0.9 | Johnny Marcum | 37 | BOS |
| XXXXX | 0.87 | Joe Beggs | 24 | NYA |
_