| Starter | Tm | Tier | Game |
|---|---|---|---|
| Paul Derringer | CIN | 2.87 | 193907060_SLN_CIN |
| Russ Bauers | PIT | 2.78 | 193907041_CIN_PIT |
| Danny MacFayden | ATL | 2.3 | 193907041_SFN_ATL |
| Dizzy Dean | CHN | 2.13 | 193907060_CHN_PIT |
| Curt Davis | SLN | 1.21 | 193907060_SLN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Mills | BAL | -3.1 | 193907060_DET_BAL |
| Ray Harrell | PHI | -2.03 | 193907042_PHI_LAN |
| Earl Whitehill | CHN | -1.16 | 193907041_SLN_CHN |
| Alex Carrasquel | MIN | -1.11 | 193907042_MIN_NYA |
| Johnny Rigney | CHA | -0.93 | 193907041_CHA_BAL |
Based on accumulated WAA for this season up to 1939-07-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.2 | Tommy Bridges | 112.7 | DET |
| +002+ | 5.77 | Bob Feller | 140 | CLE |
| +003+ | 5.46 | Bucky Walters | 142.3 | CIN |
| +008+ | 4.54 | Lou Fette | 91 | ATL |
| +012+ | 4.04 | Whit Wyatt | 82.3 | LAN |
| +013+ | 3.99 | Atley Donald | 84.3 | NYA |
| +017+ | 3.61 | Mace Brown | 71.7 | PIT |
| +019+ | 3.38 | Lefty Grove | 96 | BOS |
| +021+ | 3.22 | Paul Derringer | 134.7 | CIN |
| +026+ | 2.9 | Whitey Moore | 98 | CIN |
| +027+ | 2.89 | Bump Hadley | 75.7 | NYA |
| +028+ | 2.83 | Curt Davis | 124.3 | SLN |
| +031+ | 2.59 | Bobo Newsom | 134.3 | TOT |
| +034+ | 2.48 | Bill Lohrman | 79 | SFN |
| +035+ | 2.47 | Lefty Gomez | 90 | NYA |
| +038+ | 2.35 | Bob Klinger | 126.7 | PIT |
| +039+ | 2.29 | Claude Passeau | 120 | TOT |
| +041+ | 2.26 | Lon Warneke | 104.3 | SLN |
| +044+ | 2.15 | Dizzy Dean | 55.7 | CHN |
| +046+ | 2.05 | Milt Shoffner | 80.7 | ATL |
| +048+ | 1.97 | Hugh Casey | 69 | LAN |
| +051+ | 1.83 | Bill Swift | 50.3 | PIT |
| +054+ | 1.78 | Dutch Leonard | 112.3 | MIN |
| +055+ | 1.76 | Bill Posedel | 92.7 | ATL |
| +058+ | 1.66 | Willis Hudlin | 97.3 | CLE |
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