| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Ruffing | NYA | 5.51 | 193907070_BOS_NYA |
| Bob Feller | CLE | 4.27 | 193907070_CLE_CHA |
| Paul Derringer | CIN | 2.87 | 193907060_SLN_CIN |
| Dizzy Dean | CHN | 2.13 | 193907060_CHN_PIT |
| Whit Wyatt | LAN | 1.43 | 193907070_SFN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Mills | BAL | -3.1 | 193907060_DET_BAL |
| Johnny Marcum | CHA | -2.81 | 193907070_CLE_CHA |
| Jake Wade | BOS | -1.3 | 193907070_BOS_NYA |
| Nels Potter | OAK | -0.87 | 193907050_BOS_OAK |
| Joe Haynes | MIN | -0.86 | 193907060_MIN_OAK |
Based on accumulated WAA for this season up to 1939-07-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.21 | Tommy Bridges | 112.7 | DET |
| +002+ | 6.05 | Bob Feller | 149 | CLE |
| +003+ | 5.45 | Bucky Walters | 142.3 | CIN |
| +008+ | 4.59 | Red Ruffing | 117 | NYA |
| +009+ | 4.54 | Lou Fette | 91 | ATL |
| +011+ | 4.46 | Whit Wyatt | 91.3 | LAN |
| +014+ | 3.98 | Atley Donald | 84.3 | NYA |
| +017+ | 3.58 | Mace Brown | 71.7 | PIT |
| +019+ | 3.37 | Lefty Grove | 96 | BOS |
| +021+ | 3.21 | 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 |
| +033+ | 2.49 | Bill Lohrman | 79 | SFN |
| +035+ | 2.46 | Lefty Gomez | 90 | NYA |
| +038+ | 2.29 | Bob Klinger | 126.7 | PIT |
| +039+ | 2.28 | Claude Passeau | 120 | TOT |
| +041+ | 2.26 | Lon Warneke | 104.3 | SLN |
| +044+ | 2.13 | Dizzy Dean | 55.7 | CHN |
| +046+ | 2.05 | Milt Shoffner | 80.7 | ATL |
| +047+ | 2.01 | Bill Posedel | 101.7 | ATL |
| +048+ | 1.97 | Hugh Casey | 69 | LAN |
| +052+ | 1.81 | Bill Swift | 50.3 | PIT |
| +054+ | 1.77 | Dutch Leonard | 112.3 | MIN |
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