| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Ruffing | NYA | 5.81 | 193806070_CHA_NYA |
| Danny MacFayden | ATL | 5.28 | 193806051_ATL_SLN |
| Johnny Allen | CLE | 5.03 | 193806070_CLE_BOS |
| Bill Lee | CHN | 4.54 | 193806070_SFN_CHN |
| Van Mungo | LAN | 2.33 | 193806070_LAN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Knott | BAL | -1.28 | 193806060_BAL_NYA |
| Hugh Mulcahy | PHI | -1.14 | 193806050_PHI_CHN |
| Ken Chase | MIN | -1.06 | 193806060_CLE_MIN |
| Mel Harder | CLE | -0.93 | 193806050_CLE_MIN |
| Eddie Smith | OAK | -0.65 | 193806051_CHA_OAK |
Based on accumulated WAA for this season up to 1938-06-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 4.06 | Paul Derringer | 93 | CIN |
| +005+ | 3.71 | Bob Feller | 74 | CLE |
| +006+ | 3.7 | Bill Lee | 91.3 | CHN |
| +007+ | 3.54 | Red Ruffing | 75 | NYA |
| +008+ | 3.19 | Carl Hubbell | 65 | SFN |
| +009+ | 3.12 | Lefty Grove | 90.3 | BOS |
| +014+ | 2.49 | Larry French | 83.3 | CHN |
| +016+ | 2.47 | Johnny Vander Meer | 74.7 | CIN |
| +018+ | 2.34 | Cliff Melton | 90 | SFN |
| +019+ | 2.33 | Tot Pressnell | 78 | LAN |
| +020+ | 2.24 | Johnny Allen | 84.7 | CLE |
| +023+ | 2.1 | Vern Kennedy | 85 | DET |
| +024+ | 2.07 | Bill McGee | 66.3 | SLN |
| +029+ | 1.92 | Lynn Nelson | 72 | OAK |
| +030+ | 1.88 | Dizzy Dean | 25.7 | CHN |
| +031+ | 1.87 | Danny MacFayden | 70.3 | ATL |
| +032+ | 1.79 | Bob Klinger | 43.3 | PIT |
| +033+ | 1.76 | George Caster | 81 | OAK |
| +034+ | 1.73 | Hal Schumacher | 69.3 | SFN |
| +035+ | 1.71 | Boots Poffenberger | 63 | DET |
| +036+ | 1.68 | Milt Shoffner | 68.3 | ATL |
| +038+ | 1.66 | Jack Wilson | 63.7 | BOS |
| +043+ | 1.55 | Lou Fette | 67 | ATL |
| +045+ | 1.47 | Spud Chandler | 46 | NYA |
| +047+ | 1.45 | Monty Stratton | 28.7 | CHA |
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