| Starter | Tm | Tier | Game |
|---|---|---|---|
| Danny MacFayden | ATL | 3.57 | 193805250_CIN_ATL |
| Red Ruffing | NYA | 3.54 | 193805260_NYA_DET |
| Paul Derringer | CIN | 2.24 | 193805250_CIN_ATL |
| Bill Lee | CHN | 2.01 | 193805270_CHN_PIT |
| Hal Schumacher | SFN | 1.05 | 193805250_SLN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jimmie DeShong | MIN | -2.16 | 193805260_MIN_BAL |
| Bill Dietrich | CHA | -1.19 | 193805260_OAK_CHA |
| Bud Thomas | OAK | -0.94 | 193805250_OAK_CHA |
| Mel Harder | CLE | -0.72 | 193805250_BOS_CLE |
| Clyde Shoun | SLN | -0.6 | 193805250_SLN_SFN |
Based on accumulated WAA for this season up to 1938-05-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.69 | Bob Feller | 62 | CLE |
| +003+ | 3.67 | Paul Derringer | 75.7 | CIN |
| +004+ | 3.37 | Lefty Grove | 78 | BOS |
| +007+ | 2.63 | Carl Hubbell | 53 | SFN |
| +008+ | 2.49 | Jack Wilson | 52.3 | BOS |
| +009+ | 2.33 | Milt Shoffner | 54.3 | ATL |
| +012+ | 2.04 | Bill McGee | 50.3 | SLN |
| +013+ | 2.03 | Red Ruffing | 50.3 | NYA |
| +014+ | 2.01 | Tot Pressnell | 62 | LAN |
| +017+ | 1.94 | Johnny Allen | 65.7 | CLE |
| +018+ | 1.83 | Dizzy Dean | 25.7 | CHN |
| +022+ | 1.71 | Harry Gumbert | 58.7 | SFN |
| +023+ | 1.68 | Spud Chandler | 34 | NYA |
| +024+ | 1.63 | Ted Lyons | 34 | CHA |
| +026+ | 1.48 | Lynn Nelson | 45 | OAK |
| +027+ | 1.48 | Cliff Melton | 67 | SFN |
| +030+ | 1.34 | Bill Lee | 64.3 | CHN |
| +032+ | 1.33 | Vern Kennedy | 67 | DET |
| +033+ | 1.32 | Larry French | 66.3 | CHN |
| +034+ | 1.3 | Buck Ross | 34.7 | OAK |
| XXXXX | 1.16 | John Whitehead | 31.3 | CHA |
| XXXXX | 1.11 | Boots Poffenberger | 40 | DET |
| XXXXX | 1.06 | Van Mungo | 48.3 | LAN |
| XXXXX | 1.01 | Johnny Vander Meer | 56.7 | CIN |
| XXXXX | 0.98 | Thornton Lee | 51 | CHA |
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