| Starter | Tm | Tier | Game |
|---|---|---|---|
| Johnny Allen | CLE | 5.48 | 193806030_CLE_OAK |
| Red Ruffing | NYA | 4.67 | 193806030_DET_NYA |
| Bill Lee | CHN | 3.54 | 193806030_ATL_CHN |
| Paul Derringer | CIN | 2.82 | 193806030_LAN_CIN |
| Van Mungo | LAN | 2.65 | 193806030_LAN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Walkup | BAL | -2.46 | 193806010_BAL_BOS |
| Jimmie DeShong | MIN | -2.33 | 193806010_CHA_MIN |
| Bud Thomas | OAK | -1.18 | 193806030_CLE_OAK |
| Earl Whitehill | CLE | -0.86 | 193806020_CLE_OAK |
| Hugh Mulcahy | PHI | -0.8 | 193806010_PHI_SLN |
Based on accumulated WAA for this season up to 1938-06-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 4.19 | Bob Feller | 71 | CLE |
| +004+ | 3.91 | Paul Derringer | 93 | CIN |
| +006+ | 3.62 | Red Ruffing | 68.3 | NYA |
| +007+ | 3.59 | Carl Hubbell | 62 | SFN |
| +008+ | 3.11 | Bill Lee | 82.3 | CHN |
| +009+ | 2.75 | Jack Wilson | 60.7 | BOS |
| +010+ | 2.74 | Lefty Grove | 81.3 | BOS |
| +011+ | 2.67 | Bill McGee | 58.3 | SLN |
| +012+ | 2.57 | Tot Pressnell | 72.7 | LAN |
| +014+ | 2.48 | Johnny Allen | 83.7 | CLE |
| +017+ | 2.23 | Cliff Melton | 82.3 | SFN |
| +023+ | 1.94 | Dutch Leonard | 72.7 | MIN |
| +026+ | 1.85 | Boots Poffenberger | 57 | DET |
| +027+ | 1.84 | Dizzy Dean | 25.7 | CHN |
| +028+ | 1.77 | Danny MacFayden | 62 | ATL |
| +029+ | 1.73 | Bob Klinger | 43.3 | PIT |
| +031+ | 1.71 | Larry French | 74.3 | CHN |
| +032+ | 1.7 | Johnny Vander Meer | 65.7 | CIN |
| +033+ | 1.69 | Vern Kennedy | 76 | DET |
| +036+ | 1.55 | George Caster | 65 | OAK |
| +038+ | 1.47 | Ted Lyons | 42 | CHA |
| +040+ | 1.41 | John Whitehead | 39.3 | CHA |
| +041+ | 1.41 | Spud Chandler | 46 | NYA |
| +043+ | 1.4 | Lou Fette | 67 | ATL |
| +045+ | 1.35 | Lynn Nelson | 63 | OAK |
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