| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bucky Walters | CIN | 12.22 | 193909270_SLN_CIN |
| Bob Feller | CLE | 5.19 | 193909272_CLE_CHA |
| Hugh Casey | LAN | 2.42 | 193909261_LAN_SFN |
| Carl Hubbell | SFN | 2.27 | 193909261_LAN_SFN |
| Ted Lyons | CHA | 1.9 | 193909250_BAL_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Kramer | BAL | -4.31 | 193909262_DET_BAL |
| Bill Beckmann | OAK | -1.53 | 193909260_OAK_MIN |
| Kirby Higbe | PHI | -0.62 | 193909260_ATL_PHI |
| Schoolboy Rowe | DET | -0.59 | 193909262_DET_BAL |
| Early Wynn | MIN | -0.05 | 193909260_OAK_MIN |
Based on accumulated WAA for this season up to 1939-09-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.9 | Bucky Walters | 315 | CIN |
| +005+ | 8.99 | Bob Feller | 286 | CLE |
| +008+ | 8.08 | Paul Derringer | 292 | CIN |
| +012+ | 7.24 | Red Ruffing | 233.3 | NYA |
| +013+ | 7.12 | Lefty Grove | 182 | BOS |
| +016+ | 6.41 | Bob Bowman | 168 | SLN |
| +019+ | 6.15 | Ted Lyons | 172.7 | CHA |
| +020+ | 5.77 | Carl Hubbell | 154 | SFN |
| +023+ | 5.54 | Claude Passeau | 266.3 | TOT |
| +027+ | 5.26 | Junior Thompson | 146.7 | CIN |
| +029+ | 5.18 | Hugh Casey | 211.3 | LAN |
| +031+ | 5.02 | Marius Russo | 116 | NYA |
| +032+ | 4.95 | Mort Cooper | 202.3 | SLN |
| +033+ | 4.76 | Bump Hadley | 145 | NYA |
| +036+ | 4.35 | Lou Fette | 146 | ATL |
| +037+ | 4.21 | Bill Lee | 273.3 | CHN |
| +038+ | 4.2 | Bobo Newsom | 286.7 | TOT |
| +040+ | 4.16 | Steve Sundra | 113.7 | NYA |
| +041+ | 4.15 | Milt Shoffner | 170 | TOT |
| +042+ | 4.1 | Dutch Leonard | 260.3 | MIN |
| +045+ | 3.93 | Lefty Gomez | 198 | NYA |
| +046+ | 3.87 | Mace Brown | 196.7 | PIT |
| +048+ | 3.63 | Cliff Melton | 205.3 | SFN |
| +047+ | 3.63 | Mel Harder | 200.7 | CLE |
| +049+ | 3.55 | Tommy Bridges | 198 | DET |
_