| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Feller | CLE | 8.42 | 194009111_NYA_CLE |
| Bucky Walters | CIN | 7.89 | 194009111_CIN_ATL |
| Claude Passeau | CHN | 5.81 | 194009111_CHN_LAN |
| Bobo Newsom | DET | 4.97 | 194009100_BOS_DET |
| Johnny Rigney | CHA | 1.79 | 194009110_MIN_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Vern Kennedy | BAL | -6.59 | 194009120_MIN_BAL |
| George Caster | OAK | -3.26 | 194009110_OAK_BAL |
| Jack Wilson | BOS | -2.3 | 194009110_BOS_DET |
| Max Butcher | PIT | -2 | 194009122_PIT_LAN |
| Ike Pearson | PHI | -1.78 | 194009110_PIT_PHI |
Based on accumulated WAA for this season up to 1940-09-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.22 | Bob Feller | 284.3 | CLE |
| +002+ | 10.2 | Bucky Walters | 276 | CIN |
| +007+ | 8.62 | Claude Passeau | 252.3 | CHN |
| +009+ | 8.26 | Bobo Newsom | 231.7 | DET |
| +011+ | 6.25 | Dick Errickson | 221 | ATL |
| +018+ | 5.53 | Paul Derringer | 266.7 | CIN |
| +019+ | 5.36 | Ken Chase | 232 | MIN |
| +020+ | 5.29 | Marius Russo | 171 | NYA |
| +024+ | 5.19 | Johnny Rigney | 253.7 | CHA |
| +026+ | 4.87 | Vern Olsen | 147.3 | CHN |
| +030+ | 4.55 | Larry French | 223 | CHN |
| +032+ | 4.35 | Lon Warneke | 200.7 | SLN |
| +033+ | 4.22 | Vito Tamulis | 147.3 | LAN |
| +034+ | 4.16 | Jim Turner | 161.3 | CIN |
| +036+ | 3.85 | Rip Sewell | 159 | PIT |
| +037+ | 3.78 | Junior Thompson | 201.7 | CIN |
| +038+ | 3.74 | Eddie Smith | 184.3 | CHA |
| +039+ | 3.74 | Luke Hamlin | 169.3 | LAN |
| +040+ | 3.69 | Hal Schumacher | 192.7 | SFN |
| +044+ | 3.53 | Tiny Bonham | 64.3 | NYA |
| +046+ | 3.45 | Red Ruffing | 204 | NYA |
| +048+ | 3.4 | Dutch Leonard | 252.7 | MIN |
| +049+ | 3.33 | Manny Salvo | 143 | ATL |
| +051+ | 3.3 | Thornton Lee | 203.7 | CHA |
| +054+ | 3.15 | Jake Mooty | 114 | CHN |
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