| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Grove | BOS | 6.26 | 193806090_CLE_BOS |
| Danny MacFayden | ATL | 5.32 | 193806110_ATL_CIN |
| Hal Schumacher | SFN | 2.23 | 193806100_SFN_SLN |
| Bill Swift | PIT | 1.06 | 193806110_PHI_PIT |
| Monty Stratton | CHA | 0.96 | 193806100_CHA_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Russ Van Atta | BAL | -3.07 | 193806090_BAL_MIN |
| Jimmie DeShong | MIN | -2.21 | 193806090_BAL_MIN |
| Al Williams | OAK | -1.46 | 193806100_BAL_OAK |
| Hugh Mulcahy | PHI | -1.27 | 193806100_PHI_PIT |
| Roxie Lawson | DET | -1.22 | 193806110_DET_MIN |
Based on accumulated WAA for this season up to 1938-06-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 4.1 | Paul Derringer | 102 | CIN |
| +005+ | 4.02 | Lefty Grove | 99.3 | BOS |
| +006+ | 3.71 | Carl Hubbell | 74 | SFN |
| +007+ | 3.69 | Bill Lee | 91.3 | CHN |
| +008+ | 3.46 | Red Ruffing | 75 | NYA |
| +009+ | 3.36 | Johnny Vander Meer | 83.7 | CIN |
| +011+ | 3.1 | Bob Feller | 80 | CLE |
| +016+ | 2.62 | Larry French | 93.3 | CHN |
| +019+ | 2.5 | Cliff Melton | 98 | SFN |
| +021+ | 2.45 | Bob Klinger | 52.3 | PIT |
| +022+ | 2.35 | Bill McGee | 75 | SLN |
| +023+ | 2.33 | Tot Pressnell | 78 | LAN |
| +024+ | 2.3 | Johnny Allen | 84.7 | CLE |
| +025+ | 2.28 | Bill Swift | 55 | PIT |
| +026+ | 2.25 | Hal Schumacher | 78.3 | SFN |
| +028+ | 2.09 | Danny MacFayden | 78.3 | ATL |
| +031+ | 1.97 | Monty Stratton | 38.3 | CHA |
| +033+ | 1.92 | Lynn Nelson | 72 | OAK |
| +034+ | 1.88 | Dizzy Dean | 25.7 | CHN |
| +035+ | 1.82 | George Caster | 90 | OAK |
| +036+ | 1.75 | Milt Shoffner | 68.3 | ATL |
| +038+ | 1.69 | Boots Poffenberger | 63 | DET |
| +039+ | 1.65 | Jack Wilson | 63.7 | BOS |
| +043+ | 1.56 | Lou Fette | 75 | ATL |
| +049+ | 1.45 | Buck Ross | 35.7 | OAK |
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