| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Lee | CHN | 5.82 | 193807231_SFN_CHN |
| Carl Hubbell | SFN | 4.29 | 193807210_SFN_SLN |
| Danny MacFayden | ATL | 3.6 | 193807230_ATL_PIT |
| Paul Derringer | CIN | 2.16 | 193807221_PHI_CIN |
| Cy Blanton | PIT | 2.11 | 193807220_ATL_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wayne LaMaster | PHI | -2.12 | 193807222_PHI_CIN |
| Harry Kelley | MIN | -1.78 | 193807220_BAL_MIN |
| Bill Posedel | LAN | -0.37 | 193807230_LAN_SLN |
| Lefty Mills | BAL | -0.24 | 193807220_BAL_MIN |
| Roy Henshaw | SLN | -0.21 | 193807210_SFN_SLN |
Based on accumulated WAA for this season up to 1938-07-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.01 | Johnny Vander Meer | 153.3 | CIN |
| +003+ | 6.2 | Bill Lee | 162 | CHN |
| +009+ | 5.05 | Carl Hubbell | 134.7 | SFN |
| +012+ | 4.56 | Paul Derringer | 171 | CIN |
| +013+ | 4.43 | Lefty Grove | 149.7 | BOS |
| +017+ | 3.64 | Bill McGee | 118 | SLN |
| +021+ | 3.56 | Danny MacFayden | 103 | ATL |
| +024+ | 3.47 | Johnny Allen | 134 | CLE |
| +025+ | 3.34 | Dizzy Dean | 43.7 | CHN |
| +027+ | 3.3 | Clay Bryant | 137.3 | CHN |
| +029+ | 3.22 | Lou Fette | 133.3 | ATL |
| +030+ | 3.17 | Ted Lyons | 101.7 | CHA |
| +032+ | 3.12 | Red Ruffing | 133 | NYA |
| +035+ | 3.06 | Cliff Melton | 154.7 | SFN |
| +037+ | 2.91 | Bob Klinger | 99.7 | PIT |
| +039+ | 2.81 | Charlie Root | 76 | CHN |
| +040+ | 2.74 | Cy Blanton | 91.3 | PIT |
| +042+ | 2.63 | Freddie Fitzsimmons | 117 | LAN |
| +044+ | 2.55 | Jack Wilson | 100.7 | BOS |
| +047+ | 2.37 | Bill Swift | 94 | PIT |
| +050+ | 2.24 | Tot Pressnell | 132 | LAN |
| +051+ | 2.23 | Peaches Davis | 109.3 | CIN |
| +052+ | 2.23 | Bob Weiland | 136 | SLN |
| +053+ | 2.18 | Bill Lohrman | 59.7 | SFN |
| +054+ | 2.17 | Monty Stratton | 87.7 | CHA |
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