| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bucky Walters | CIN | 7.4 | 193908261_CIN_LAN |
| Red Ruffing | NYA | 6.67 | 193908270_NYA_DET |
| Bob Feller | CLE | 4.27 | 193908271_BOS_CLE |
| Lefty Grove | BOS | 3.36 | 193908250_BOS_CHA |
| Lou Fette | ATL | 3.25 | 193908261_CHN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nels Potter | OAK | -6.89 | 193908260_OAK_CLE |
| Vern Kennedy | BAL | -2.58 | 193908271_MIN_BAL |
| Joe Haynes | MIN | -2.1 | 193908250_MIN_DET |
| Ray Harrell | PHI | -1 | 193908272_CHN_PHI |
| Denny Galehouse | BOS | -0.55 | 193908271_BOS_CLE |
Based on accumulated WAA for this season up to 1939-08-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.09 | Bucky Walters | 244 | CIN |
| +003+ | 9.22 | Red Ruffing | 204 | NYA |
| +005+ | 8.35 | Bob Feller | 229.3 | CLE |
| +011+ | 6.15 | Lefty Grove | 153 | BOS |
| +014+ | 5.73 | Paul Derringer | 228 | CIN |
| +016+ | 4.83 | Curt Davis | 204 | SLN |
| +017+ | 4.63 | Hugh Casey | 159 | LAN |
| +021+ | 4.53 | Claude Passeau | 212.7 | TOT |
| +023+ | 4.43 | Lou Fette | 139 | ATL |
| +025+ | 4.42 | Bump Hadley | 123 | NYA |
| +026+ | 4.34 | Mace Brown | 155.3 | PIT |
| +030+ | 4.21 | Carl Hubbell | 108 | SFN |
| +031+ | 4.14 | Bob Bowman | 127.7 | SLN |
| +033+ | 4.07 | Steve Sundra | 82 | NYA |
| +036+ | 3.81 | Ted Lyons | 129.7 | CHA |
| +039+ | 3.65 | Cliff Melton | 160.7 | SFN |
| +040+ | 3.58 | Mort Cooper | 155.7 | SLN |
| +041+ | 3.54 | Tommy Bridges | 173 | DET |
| +042+ | 3.49 | Dutch Leonard | 208.3 | MIN |
| +043+ | 3.48 | Atley Donald | 138.7 | NYA |
| +045+ | 3.39 | Bill Lohrman | 147.7 | SFN |
| +047+ | 3.32 | Milt Shoffner | 142.7 | TOT |
| +051+ | 3.1 | Whitey Moore | 154.7 | CIN |
| +053+ | 3 | Bill Posedel | 184.3 | ATL |
| +057+ | 2.68 | Bobo Newsom | 229.3 | TOT |
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