| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bucky Walters | CIN | 10.49 | 193909050_CIN_SLN |
| Bob Feller | CLE | 4.77 | 193909040_CHA_CLE |
| Lefty Grove | BOS | 2.9 | 193909060_BOS_NYA |
| Hugh Casey | LAN | 2.36 | 193909050_ATL_LAN |
| Lou Fette | ATL | 2.14 | 193909050_ATL_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Buck Ross | OAK | -5.09 | 193909041_NYA_OAK |
| George Gill | BAL | -3.9 | 193909050_BAL_DET |
| Joe Haynes | MIN | -1.8 | 193909041_MIN_BOS |
| Ray Harrell | PHI | -0.86 | 193909050_PHI_SFN |
| Al Hollingsworth | LAN | -0.83 | 193909042_ATL_LAN |
Based on accumulated WAA for this season up to 1939-09-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 11.41 | Bucky Walters | 260 | CIN |
| +005+ | 7.81 | Bob Feller | 243 | CLE |
| +007+ | 7.66 | Red Ruffing | 212 | NYA |
| +009+ | 6.58 | Paul Derringer | 247 | CIN |
| +013+ | 6.23 | Lefty Grove | 166 | BOS |
| +016+ | 5.67 | Hugh Casey | 177 | LAN |
| +020+ | 5.09 | Claude Passeau | 221.7 | TOT |
| +024+ | 4.81 | Carl Hubbell | 117 | SFN |
| +027+ | 4.38 | Ted Lyons | 138.7 | CHA |
| +029+ | 4.33 | Mace Brown | 167 | PIT |
| +030+ | 4.22 | Lou Fette | 146 | ATL |
| +034+ | 4.04 | Bob Bowman | 137 | SLN |
| +035+ | 4.03 | Marius Russo | 89 | NYA |
| +036+ | 3.9 | Dutch Leonard | 226.3 | MIN |
| +037+ | 3.81 | Bump Hadley | 129 | NYA |
| +038+ | 3.77 | Cliff Melton | 173.7 | SFN |
| +039+ | 3.75 | Milt Shoffner | 150 | TOT |
| +042+ | 3.52 | Johnny Rigney | 189 | CHA |
| +045+ | 3.38 | Steve Sundra | 86.7 | NYA |
| +047+ | 3.21 | Larry French | 156.3 | CHN |
| +048+ | 3.17 | Curt Davis | 211.3 | SLN |
| +049+ | 3.15 | Lefty Gomez | 173 | NYA |
| +050+ | 3.14 | Bill Posedel | 199.3 | ATL |
| +052+ | 3.1 | Bill Lohrman | 160.7 | SFN |
| +056+ | 2.87 | Mort Cooper | 161.3 | SLN |
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