| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Ruffing | NYA | 6.36 | 193905301_NYA_BOS |
| Carl Hubbell | SFN | 3.6 | 193905302_LAN_SFN |
| Russ Bauers | PIT | 3.32 | 193905302_PIT_SLN |
| Danny MacFayden | ATL | 2.8 | 193906010_CIN_ATL |
| Bob Feller | CLE | 1.76 | 193905301_BAL_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Vern Kennedy | BAL | -3.7 | 193905302_BAL_CLE |
| Hugh Mulcahy | PHI | -3.56 | 193905301_ATL_PHI |
| Lynn Nelson | OAK | -1.68 | 193906010_OAK_BAL |
| Bobo Newsom | DET | -1.26 | 193906010_BOS_DET |
| Ken Chase | MIN | -1.05 | 193905302_OAK_MIN |
Based on accumulated WAA for this season up to 1939-06-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.59 | Curt Davis | 75.7 | SLN |
| +002+ | 3.57 | Lou Fette | 61 | ATL |
| +004+ | 3.01 | Lon Warneke | 65.7 | SLN |
| +005+ | 3 | Willis Hudlin | 67.3 | CLE |
| +007+ | 2.81 | Tommy Bridges | 60 | DET |
| +008+ | 2.8 | Bob Feller | 80.3 | CLE |
| +014+ | 2.35 | Bucky Walters | 77.3 | CIN |
| +016+ | 2.25 | Whitey Moore | 61.3 | CIN |
| +017+ | 2.22 | Rip Sewell | 70 | PIT |
| +019+ | 2.19 | Whit Wyatt | 44.7 | LAN |
| +021+ | 2.07 | Bill McGee | 35.3 | SLN |
| +022+ | 2.06 | Lee Grissom | 46.7 | CIN |
| +026+ | 2.01 | Ted Lyons | 44 | CHA |
| +027+ | 1.98 | Red Ruffing | 62.3 | NYA |
| +030+ | 1.82 | Alex Carrasquel | 47.7 | MIN |
| +032+ | 1.78 | Dizzy Dean | 23 | CHN |
| +034+ | 1.6 | Bump Hadley | 37.3 | NYA |
| +035+ | 1.59 | Lefty Gomez | 52 | NYA |
| +036+ | 1.58 | Larry French | 56 | CHN |
| +037+ | 1.57 | Syl Johnson | 27.3 | PHI |
| +038+ | 1.56 | Oral Hildebrand | 32.7 | NYA |
| +042+ | 1.47 | Paul Derringer | 72.7 | CIN |
| +044+ | 1.43 | Carl Hubbell | 28.3 | SFN |
| +045+ | 1.42 | Van Mungo | 50 | LAN |
| +047+ | 1.38 | George Caster | 56.3 | OAK |
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