| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Feller | CLE | 8.13 | 194009040_CLE_DET |
| Bucky Walters | CIN | 5.66 | 194009040_PIT_CIN |
| Claude Passeau | CHN | 5.36 | 194009040_CHN_SLN |
| Dick Errickson | ATL | 1.79 | 194009040_ATL_SFN |
| Hugh Mulcahy | PHI | 1.55 | 194009050_LAN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Max Butcher | PIT | -2.5 | 194009040_PIT_CIN |
| George Caster | OAK | -2.38 | 194009050_OAK_BOS |
| Bob Harris | BAL | -2.27 | 194009040_BAL_CHA |
| Jack Wilson | BOS | -1.88 | 194009041_OAK_BOS |
| Walt Masterson | MIN | -0.73 | 194009052_NYA_MIN |
Based on accumulated WAA for this season up to 1940-09-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.81 | Bob Feller | 274.3 | CLE |
| +002+ | 9.3 | Bucky Walters | 267 | CIN |
| +005+ | 8.56 | Claude Passeau | 243.3 | CHN |
| +007+ | 8.18 | Bobo Newsom | 210.7 | DET |
| +014+ | 5.73 | Paul Derringer | 253.7 | CIN |
| +016+ | 5.62 | Dick Errickson | 209.7 | ATL |
| +018+ | 5.18 | Vito Tamulis | 142.3 | LAN |
| +020+ | 4.96 | Marius Russo | 162 | NYA |
| +021+ | 4.93 | Johnny Rigney | 235.7 | CHA |
| +022+ | 4.87 | Lon Warneke | 196.3 | SLN |
| +028+ | 4.2 | Manny Salvo | 138.7 | ATL |
| +029+ | 4.2 | Vern Olsen | 138.3 | CHN |
| +030+ | 4.16 | Larry French | 206 | CHN |
| +033+ | 3.99 | Dutch Leonard | 244.7 | MIN |
| +034+ | 3.98 | Jim Turner | 155.3 | CIN |
| +036+ | 3.86 | Rip Sewell | 149 | PIT |
| +037+ | 3.84 | Luke Hamlin | 157.3 | LAN |
| +039+ | 3.72 | Ken Chase | 214 | MIN |
| +040+ | 3.69 | Hal Schumacher | 183.7 | SFN |
| +041+ | 3.48 | Carl Hubbell | 179.3 | SFN |
| +043+ | 3.42 | Hugh Mulcahy | 247 | PHI |
| +049+ | 3.3 | Eddie Smith | 175.3 | CHA |
| +051+ | 3.29 | Johnny Allen | 118.3 | CLE |
| +050+ | 3.29 | Bill Lohrman | 155.7 | SFN |
| +052+ | 3.19 | Red Ruffing | 193.7 | NYA |
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