| 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 |
| Vito Tamulis | LAN | 1.91 | 194009090_LAN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| George Caster | OAK | -3.26 | 194009110_OAK_BAL |
| Jack Wilson | BOS | -2.3 | 194009110_BOS_DET |
| Ike Pearson | PHI | -1.78 | 194009110_PIT_PHI |
| Bob Harris | BAL | -1.74 | 194009100_OAK_BAL |
| Fred Hutchinson | DET | -0.78 | 194009110_BOS_DET |
Based on accumulated WAA for this season up to 1940-09-11.
| 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 |
| +010+ | 6.26 | Dick Errickson | 221 | ATL |
| +018+ | 5.53 | Paul Derringer | 266.7 | CIN |
| +019+ | 5.36 | Ken Chase | 232 | MIN |
| +022+ | 5.27 | Marius Russo | 171 | NYA |
| +024+ | 5.2 | Johnny Rigney | 253.7 | CHA |
| +026+ | 4.87 | Vern Olsen | 147.3 | CHN |
| +031+ | 4.32 | Lon Warneke | 200.7 | SLN |
| +032+ | 4.21 | Vito Tamulis | 147.3 | LAN |
| +034+ | 4.16 | Jim Turner | 161.3 | CIN |
| +035+ | 3.98 | Luke Hamlin | 163 | LAN |
| +036+ | 3.9 | Larry French | 214 | CHN |
| +037+ | 3.82 | Rip Sewell | 159 | PIT |
| +039+ | 3.69 | Hal Schumacher | 192.7 | SFN |
| +041+ | 3.56 | Junior Thompson | 192.7 | CIN |
| +043+ | 3.52 | Tiny Bonham | 64.3 | NYA |
| +045+ | 3.49 | Bill Lohrman | 166.7 | SFN |
| +046+ | 3.44 | Red Ruffing | 204 | NYA |
| +047+ | 3.4 | Dutch Leonard | 252.7 | MIN |
| +050+ | 3.33 | Manny Salvo | 143 | ATL |
| +053+ | 3.3 | Eddie Smith | 175.3 | CHA |
| +052+ | 3.3 | Thornton Lee | 203.7 | CHA |
_