| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bucky Walters | CIN | 12.41 | 193909200_PHI_CIN |
| Bob Feller | CLE | 4.73 | 193909220_DET_CLE |
| Lefty Grove | BOS | 3.15 | 193909200_BAL_BOS |
| Hugh Casey | LAN | 2.68 | 193909200_LAN_SLN |
| Bob Bowman | SLN | 2.14 | 193909200_LAN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Kramer | BAL | -3.68 | 193909210_BAL_BOS |
| Cotton Pippen | DET | -2.59 | 193909210_DET_OAK |
| Bill Beckmann | OAK | -1.1 | 193909210_DET_OAK |
| Bill Dietrich | CHA | -0.64 | 193909210_CHA_NYA |
| Ike Pearson | PHI | -0.47 | 193909210_PHI_CIN |
Based on accumulated WAA for this season up to 1939-09-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.74 | Bucky Walters | 297 | CIN |
| +005+ | 8.78 | Bob Feller | 279 | CLE |
| +008+ | 7.55 | Paul Derringer | 283 | CIN |
| +011+ | 7.19 | Red Ruffing | 233.3 | NYA |
| +012+ | 7.08 | Lefty Grove | 182 | BOS |
| +017+ | 6.06 | Bob Bowman | 165 | SLN |
| +018+ | 6.05 | Claude Passeau | 259.3 | TOT |
| +019+ | 5.81 | Carl Hubbell | 145 | SFN |
| +021+ | 5.79 | Ted Lyons | 163.7 | CHA |
| +022+ | 5.76 | Hugh Casey | 207.7 | LAN |
| +028+ | 5 | Marius Russo | 116 | NYA |
| +030+ | 4.72 | Bump Hadley | 145 | NYA |
| +031+ | 4.56 | Junior Thompson | 137.7 | CIN |
| +034+ | 4.51 | Dutch Leonard | 252.3 | MIN |
| +036+ | 4.4 | Bill Lee | 267.3 | CHN |
| +038+ | 4.23 | Lou Fette | 146 | ATL |
| +039+ | 4.14 | Steve Sundra | 113.7 | NYA |
| +041+ | 4 | Mort Cooper | 193.3 | SLN |
| +043+ | 3.95 | Milt Shoffner | 167 | TOT |
| +044+ | 3.82 | Mace Brown | 196.7 | PIT |
| +045+ | 3.77 | Bobo Newsom | 271.7 | TOT |
| +046+ | 3.72 | Lefty Gomez | 192 | NYA |
| +049+ | 3.52 | Larry French | 185.7 | CHN |
| +050+ | 3.48 | Oral Hildebrand | 117.7 | NYA |
| +051+ | 3.43 | Cliff Melton | 198.3 | SFN |
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