| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 5.28 | 193807172_ATL_CHN |
| Danny MacFayden | ATL | 4.41 | 193807172_ATL_CHN |
| Carl Hubbell | SFN | 4 | 193807171_SFN_PIT |
| Paul Derringer | CIN | 2.81 | 193807172_LAN_CIN |
| Cy Blanton | PIT | 2.6 | 193807180_SFN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobo Newsom | BAL | -2.55 | 193807171_BAL_BOS |
| Ken Chase | MIN | -2.13 | 193807190_DET_MIN |
| Max Butcher | LAN | -1.09 | 193807172_LAN_CIN |
| Hugh Mulcahy | PHI | -0.91 | 193807190_PHI_PIT |
| Vern Kennedy | DET | -0.69 | 193807190_DET_MIN |
Based on accumulated WAA for this season up to 1938-07-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 6.97 | Johnny Vander Meer | 144.3 | CIN |
| +003+ | 6.16 | Bill Lee | 153 | CHN |
| +011+ | 4.52 | Carl Hubbell | 125.7 | SFN |
| +012+ | 4.46 | Lefty Grove | 149.7 | BOS |
| +015+ | 4.11 | Paul Derringer | 162 | CIN |
| +018+ | 3.56 | Bill McGee | 117.3 | SLN |
| +020+ | 3.51 | Bob Klinger | 95 | PIT |
| +021+ | 3.47 | Johnny Allen | 134 | CLE |
| +024+ | 3.41 | Tot Pressnell | 131.3 | LAN |
| +027+ | 3.35 | Cliff Melton | 147.7 | SFN |
| +029+ | 3.18 | Ted Lyons | 101.7 | CHA |
| +030+ | 3.15 | Red Ruffing | 133 | NYA |
| +031+ | 3.11 | Danny MacFayden | 94.3 | ATL |
| +035+ | 2.94 | Lou Fette | 126.3 | ATL |
| +038+ | 2.65 | Dizzy Dean | 34.7 | CHN |
| +039+ | 2.63 | Clay Bryant | 128.3 | CHN |
| +040+ | 2.61 | Bob Feller | 148.3 | CLE |
| +041+ | 2.57 | Freddie Fitzsimmons | 112.3 | LAN |
| +044+ | 2.49 | Jack Wilson | 91.7 | BOS |
| +045+ | 2.43 | Peaches Davis | 107 | CIN |
| +046+ | 2.36 | Bill Swift | 94 | PIT |
| +048+ | 2.28 | Cy Blanton | 82.3 | PIT |
| +049+ | 2.18 | Monty Stratton | 87.7 | CHA |
| +050+ | 2.17 | Bill Lohrman | 57.7 | SFN |
| +054+ | 1.97 | Dutch Leonard | 128.3 | MIN |
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