| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bucky Walters | CIN | 7.4 | 193908261_CIN_LAN |
| Lefty Grove | BOS | 3.36 | 193908250_BOS_CHA |
| Lou Fette | ATL | 3.25 | 193908261_CHN_ATL |
| Curt Davis | SLN | 1.36 | 193908261_SLN_PHI |
| Hugh Casey | LAN | 1.08 | 193908262_CIN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nels Potter | OAK | -6.89 | 193908260_OAK_CLE |
| Lefty Mills | BAL | -4.63 | 193908240_NYA_BAL |
| Joe Haynes | MIN | -2.1 | 193908250_MIN_DET |
| Elden Auker | BOS | -0.94 | 193908240_BOS_CHA |
| Max Butcher | PIT | -0.63 | 193908240_PIT_SFN |
Based on accumulated WAA for this season up to 1939-08-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.12 | Bucky Walters | 244 | CIN |
| +003+ | 8.98 | Red Ruffing | 195 | NYA |
| +006+ | 7.49 | Bob Feller | 220.3 | CLE |
| +011+ | 6.15 | Lefty Grove | 153 | BOS |
| +015+ | 5.29 | Paul Derringer | 219 | CIN |
| +016+ | 4.83 | Curt Davis | 204 | SLN |
| +017+ | 4.77 | Carl Hubbell | 103 | SFN |
| +020+ | 4.64 | Hugh Casey | 159 | LAN |
| +024+ | 4.44 | Bump Hadley | 123 | NYA |
| +026+ | 4.34 | Lou Fette | 138 | ATL |
| +028+ | 4.32 | Claude Passeau | 204 | TOT |
| +030+ | 4.14 | Bob Bowman | 127.7 | SLN |
| +031+ | 4.08 | Steve Sundra | 82 | NYA |
| +033+ | 3.96 | Mace Brown | 147.3 | PIT |
| +034+ | 3.91 | Mort Cooper | 150.7 | SLN |
| +036+ | 3.84 | Ted Lyons | 129.7 | CHA |
| +040+ | 3.68 | Cliff Melton | 160.7 | SFN |
| +041+ | 3.6 | Dutch Leonard | 200.3 | MIN |
| +042+ | 3.57 | Tommy Bridges | 173 | DET |
| +043+ | 3.5 | Atley Donald | 138.7 | NYA |
| +044+ | 3.41 | Bill Lohrman | 147.7 | SFN |
| +045+ | 3.33 | Milt Shoffner | 142.7 | TOT |
| +049+ | 3.13 | Whitey Moore | 154.7 | CIN |
| +053+ | 2.97 | Bill Posedel | 175.3 | ATL |
| +057+ | 2.73 | Bobo Newsom | 229.3 | TOT |
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