| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Ruffing | NYA | 4.54 | 193906040_NYA_DET |
| Lefty Grove | BOS | 4.42 | 193906042_BOS_CLE |
| Carl Hubbell | SFN | 3.64 | 193906040_CIN_SFN |
| Bill Lee | CHN | 2.67 | 193906040_CHN_PHI |
| Bob Feller | CLE | 2.26 | 193906041_BOS_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roxie Lawson | BAL | -4.89 | 193906060_MIN_BAL |
| Jimmie DeShong | MIN | -4.01 | 193906042_MIN_BAL |
| Hugh Mulcahy | PHI | -3.52 | 193906040_CHN_PHI |
| Bobo Newsom | DET | -1.87 | 193906060_NYA_DET |
| Jack Knott | CHA | -1.16 | 193906050_OAK_CHA |
Based on accumulated WAA for this season up to 1939-06-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.95 | Tommy Bridges | 69.7 | DET |
| +003+ | 3.68 | Lou Fette | 61 | ATL |
| +004+ | 3.64 | Curt Davis | 88 | SLN |
| +005+ | 3.53 | Whitey Moore | 72.3 | CIN |
| +006+ | 3.52 | Bob Feller | 89.3 | CLE |
| +007+ | 3.48 | Willis Hudlin | 74.3 | CLE |
| +008+ | 3.05 | Bucky Walters | 86.3 | CIN |
| +009+ | 3 | Lon Warneke | 71.7 | SLN |
| +016+ | 2.37 | Paul Derringer | 81.7 | CIN |
| +017+ | 2.34 | Whit Wyatt | 44.7 | LAN |
| +018+ | 2.33 | Bump Hadley | 45.3 | NYA |
| +022+ | 2.22 | Lefty Grove | 61.3 | BOS |
| +023+ | 2.18 | Bill McGee | 35.3 | SLN |
| +026+ | 2.06 | Red Ruffing | 69.3 | NYA |
| +033+ | 1.96 | Dizzy Dean | 24 | CHN |
| +035+ | 1.93 | Lee Grissom | 52.3 | CIN |
| +037+ | 1.76 | Lefty Gomez | 52 | NYA |
| +038+ | 1.75 | Rip Sewell | 73.3 | PIT |
| +040+ | 1.59 | Van Mungo | 50 | LAN |
| +042+ | 1.54 | Hugh Casey | 27.3 | LAN |
| +043+ | 1.53 | Atley Donald | 43.7 | NYA |
| +046+ | 1.44 | Vito Tamulis | 57.3 | LAN |
| XXXXX | 1.16 | Ted Lyons | 53 | CHA |
| XXXXX | 1.13 | Al Milnar | 53 | CLE |
| XXXXX | 1.12 | Alex Carrasquel | 53.3 | MIN |
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