| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lou Fette | ATL | 7.02 | 193907080_PHI_ATL |
| Red Ruffing | NYA | 5.51 | 193907070_BOS_NYA |
| Bob Feller | CLE | 4.27 | 193907070_CLE_CHA |
| Tommy Bridges | DET | 2.89 | 193907080_DET_CHA |
| Paul Derringer | CIN | 2.87 | 193907060_SLN_CIN |
| 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 |
| Cotton Pippen | OAK | -0.91 | 193907082_MIN_OAK |
| Joe Haynes | MIN | -0.86 | 193907060_MIN_OAK |
Based on accumulated WAA for this season up to 1939-07-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.06 | Bob Feller | 149 | CLE |
| +002+ | 5.57 | Tommy Bridges | 118.7 | DET |
| +003+ | 5.44 | Bucky Walters | 142.3 | CIN |
| +004+ | 5.42 | Lou Fette | 100 | ATL |
| +009+ | 4.57 | Red Ruffing | 117 | NYA |
| +010+ | 4.47 | Whit Wyatt | 91.3 | LAN |
| +015+ | 3.97 | Atley Donald | 84.3 | NYA |
| +018+ | 3.57 | Mace Brown | 71.7 | PIT |
| +021+ | 3.36 | Lefty Grove | 96 | BOS |
| +022+ | 3.2 | Paul Derringer | 134.7 | CIN |
| +028+ | 2.88 | Bump Hadley | 75.7 | NYA |
| +029+ | 2.82 | Curt Davis | 124.3 | SLN |
| +030+ | 2.59 | Bobo Newsom | 134.3 | TOT |
| +031+ | 2.58 | Bill Lohrman | 86 | SFN |
| +033+ | 2.54 | Whitey Moore | 98.7 | CIN |
| +035+ | 2.45 | Lefty Gomez | 90 | NYA |
| +039+ | 2.28 | Bob Klinger | 126.7 | PIT |
| +040+ | 2.25 | Lon Warneke | 104.3 | SLN |
| +044+ | 2.13 | Claude Passeau | 127 | TOT |
| +045+ | 2.13 | Dizzy Dean | 55.7 | CHN |
| +047+ | 2.05 | Milt Shoffner | 80.7 | ATL |
| +048+ | 2.01 | Bill Posedel | 101.7 | ATL |
| +049+ | 1.98 | Hugh Casey | 69 | LAN |
| +050+ | 1.8 | Bill Swift | 50.3 | PIT |
| +051+ | 1.78 | Dutch Leonard | 112.3 | MIN |
_