| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bucky Walters | CIN | 12.27 | 193909231_PIT_CIN |
| Bob Feller | CLE | 4.73 | 193909220_DET_CLE |
| Claude Passeau | CHN | 2.13 | 193909240_CHN_SLN |
| Mace Brown | PIT | 1.03 | 193909221_PIT_CIN |
| Dutch Leonard | MIN | 0.94 | 193909230_NYA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jake Wade | BAL | -1.4 | 193909231_BAL_CHA |
| Ray Harrell | PHI | -1.03 | 193909232_LAN_PHI |
| Hal Schumacher | SFN | -0.55 | 193909230_ATL_SFN |
| Monte Pearson | NYA | -0.36 | 193909230_NYA_MIN |
| Jack Wilson | BOS | -0.35 | 193909230_OAK_BOS |
Based on accumulated WAA for this season up to 1939-09-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.6 | Bucky Walters | 306 | CIN |
| +005+ | 8.89 | Bob Feller | 279 | CLE |
| +008+ | 8.04 | Paul Derringer | 292 | CIN |
| +012+ | 7.21 | Red Ruffing | 233.3 | NYA |
| +013+ | 7.09 | Lefty Grove | 182 | BOS |
| +018+ | 6.08 | Bob Bowman | 165 | SLN |
| +019+ | 5.87 | Carl Hubbell | 145 | SFN |
| +020+ | 5.86 | Ted Lyons | 163.7 | CHA |
| +022+ | 5.8 | Hugh Casey | 207.7 | LAN |
| +025+ | 5.54 | Claude Passeau | 266.3 | TOT |
| +029+ | 5.01 | Marius Russo | 116 | NYA |
| +030+ | 4.74 | Bump Hadley | 145 | NYA |
| +032+ | 4.57 | Junior Thompson | 137.7 | CIN |
| +035+ | 4.37 | Bobo Newsom | 280.7 | TOT |
| +036+ | 4.32 | Lou Fette | 146 | ATL |
| +038+ | 4.21 | Bill Lee | 273.3 | CHN |
| +040+ | 4.15 | Steve Sundra | 113.7 | NYA |
| +041+ | 4.07 | Dutch Leonard | 260.3 | MIN |
| +042+ | 4.03 | Milt Shoffner | 167 | TOT |
| +043+ | 4.02 | Mort Cooper | 193.3 | SLN |
| +045+ | 3.91 | Lefty Gomez | 198 | NYA |
| +046+ | 3.88 | Mace Brown | 196.7 | PIT |
| +047+ | 3.83 | Mel Harder | 198.7 | CLE |
| +048+ | 3.57 | Larry French | 185.7 | CHN |
| +050+ | 3.54 | Johnny Rigney | 214 | CHA |
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