| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bucky Walters | CIN | 12.28 | 193909160_SFN_CIN |
| Carl Hubbell | SFN | 2.2 | 193909141_SFN_CIN |
| Bob Bowman | SLN | 1.61 | 193909150_ATL_SLN |
| Marius Russo | NYA | 1.22 | 193909160_DET_NYA |
| Mace Brown | PIT | 0.85 | 193909141_LAN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nels Potter | OAK | -8.93 | 193909140_CHA_OAK |
| Vern Kennedy | BAL | -4.69 | 193909150_BAL_MIN |
| Joe Haynes | MIN | -2.46 | 193909160_BAL_MIN |
| Cotton Pippen | DET | -1.83 | 193909160_DET_NYA |
| Ray Harrell | PHI | -1.52 | 193909160_PHI_CHN |
Based on accumulated WAA for this season up to 1939-09-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.31 | Bucky Walters | 288 | CIN |
| +005+ | 8.59 | Bob Feller | 262 | CLE |
| +007+ | 7.87 | Red Ruffing | 225 | NYA |
| +010+ | 7.15 | Lefty Grove | 175 | BOS |
| +012+ | 6.87 | Paul Derringer | 265 | CIN |
| +015+ | 6.02 | Hugh Casey | 193 | LAN |
| +016+ | 5.9 | Ted Lyons | 158.7 | CHA |
| +019+ | 5.83 | Bob Bowman | 156 | SLN |
| +022+ | 5.45 | Claude Passeau | 242.3 | TOT |
| +028+ | 4.55 | Marius Russo | 107 | NYA |
| +030+ | 4.37 | Bill Lee | 258.3 | CHN |
| +031+ | 4.28 | Bump Hadley | 136 | NYA |
| +034+ | 4.24 | Milt Shoffner | 161.7 | TOT |
| +036+ | 4.2 | Lou Fette | 146 | ATL |
| +035+ | 4.2 | Carl Hubbell | 127 | SFN |
| +038+ | 4.12 | Bobo Newsom | 265.3 | TOT |
| +037+ | 4.12 | Dutch Leonard | 243.3 | MIN |
| +039+ | 4.1 | Steve Sundra | 104.7 | NYA |
| +042+ | 3.72 | Mace Brown | 185 | PIT |
| +046+ | 3.6 | Curt Davis | 229.7 | SLN |
| +047+ | 3.53 | Junior Thompson | 122.7 | CIN |
| +049+ | 3.28 | Lefty Gomez | 183 | NYA |
| +050+ | 3.28 | Larry French | 172.3 | CHN |
| +056+ | 2.96 | Johnny Rigney | 203 | CHA |
| +057+ | 2.9 | Mort Cooper | 175.3 | SLN |
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