| 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 |
| Red Ruffing | NYA | 2.67 | 193807160_DET_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobo Newsom | BAL | -2.55 | 193807171_BAL_BOS |
| Max Butcher | LAN | -1.09 | 193807172_LAN_CIN |
| Harry Kelley | MIN | -0.97 | 193807170_CHA_MIN |
| Earl Whitehill | CLE | -0.86 | 193807160_CLE_OAK |
| Al Hollingsworth | PHI | -0.41 | 193807160_PHI_SLN |
Based on accumulated WAA for this season up to 1938-07-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 6.99 | Johnny Vander Meer | 144.3 | CIN |
| +003+ | 6.18 | Bill Lee | 153 | CHN |
| +011+ | 4.48 | Lefty Grove | 149.7 | BOS |
| +012+ | 4.47 | Carl Hubbell | 125 | SFN |
| +014+ | 4.12 | Paul Derringer | 162 | CIN |
| +018+ | 3.51 | Bob Klinger | 95 | PIT |
| +019+ | 3.49 | Johnny Allen | 134 | CLE |
| +021+ | 3.43 | Tot Pressnell | 131.3 | LAN |
| +023+ | 3.4 | Bill McGee | 113.3 | SLN |
| +025+ | 3.37 | Cliff Melton | 147.7 | SFN |
| +029+ | 3.21 | Larry French | 136 | CHN |
| +030+ | 3.2 | Ted Lyons | 101.7 | CHA |
| +031+ | 3.16 | Red Ruffing | 133 | NYA |
| +033+ | 3.09 | Danny MacFayden | 94.3 | ATL |
| +036+ | 2.92 | Lou Fette | 126.3 | ATL |
| +040+ | 2.65 | Dizzy Dean | 34.7 | CHN |
| +041+ | 2.64 | Clay Bryant | 128.3 | CHN |
| +042+ | 2.63 | Bob Feller | 148.3 | CLE |
| +043+ | 2.63 | Hal Schumacher | 123.3 | SFN |
| +045+ | 2.59 | Freddie Fitzsimmons | 112.3 | LAN |
| +046+ | 2.5 | Jack Wilson | 91.7 | BOS |
| +047+ | 2.44 | Peaches Davis | 107 | CIN |
| +048+ | 2.37 | Bill Swift | 94 | PIT |
| +049+ | 2.29 | Cy Blanton | 82.3 | PIT |
| +051+ | 2.19 | Monty Stratton | 87.7 | CHA |
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