| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 7.7 | 193906182_ATL_CIN |
| Lefty Grove | BOS | 4.11 | 193906182_CLE_BOS |
| Red Ruffing | NYA | 4.03 | 193906170_DET_NYA |
| Bob Feller | CLE | 3.39 | 193906181_CLE_BOS |
| Dizzy Dean | CHN | 2.43 | 193906181_LAN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Mills | BAL | -3.63 | 193906170_BAL_MIN |
| Buck Ross | OAK | -2.09 | 193906160_BAL_OAK |
| Harry Kelley | MIN | -1.26 | 193906160_CHA_MIN |
| Earl Whitehill | CHN | -1.13 | 193906170_LAN_CHN |
| Bobo Newsom | DET | -0.81 | 193906170_DET_NYA |
Based on accumulated WAA for this season up to 1939-06-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.2 | Lou Fette | 80.7 | ATL |
| +003+ | 4.33 | Bob Feller | 112.7 | CLE |
| +004+ | 4.29 | Bucky Walters | 104.7 | CIN |
| +005+ | 3.98 | Tommy Bridges | 85.7 | DET |
| +008+ | 3.63 | Willis Hudlin | 93 | CLE |
| +009+ | 3.55 | Whitey Moore | 86.7 | CIN |
| +010+ | 3.38 | Lon Warneke | 85 | SLN |
| +011+ | 3.18 | Whit Wyatt | 55.7 | LAN |
| +015+ | 2.91 | Red Ruffing | 87.3 | NYA |
| +016+ | 2.85 | Lefty Gomez | 68 | NYA |
| +027+ | 2.43 | Hugh Casey | 43.3 | LAN |
| +029+ | 2.35 | Curt Davis | 97.7 | SLN |
| +030+ | 2.34 | Dizzy Dean | 34.3 | CHN |
| +035+ | 2.13 | Lefty Grove | 78 | BOS |
| +036+ | 2.1 | Paul Derringer | 101.7 | CIN |
| +038+ | 2.08 | Atley Donald | 60.3 | NYA |
| +039+ | 2.07 | Bill Swift | 42.7 | PIT |
| +040+ | 2 | Dick Errickson | 40.7 | ATL |
| +041+ | 2 | Bob Weiland | 59 | SLN |
| +042+ | 1.91 | Bump Hadley | 58.7 | NYA |
| +043+ | 1.84 | Bob Klinger | 97.7 | PIT |
| +045+ | 1.77 | Bill McGee | 54.7 | SLN |
| +047+ | 1.75 | Bobo Newsom | 106.7 | TOT |
| +053+ | 1.52 | Syl Johnson | 37 | PHI |
| +061+ | 1.27 | Bill Lohrman | 51.3 | SFN |
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