| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobo Newsom | DET | 4.63 | 194009060_CLE_DET |
| Paul Derringer | CIN | 2.98 | 194009070_CIN_CHN |
| Johnny Rigney | CHA | 1.74 | 194009060_BAL_CHA |
| Marius Russo | NYA | 1.74 | 194009070_NYA_BOS |
| Hugh Mulcahy | PHI | 1.55 | 194009050_LAN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Vern Kennedy | BAL | -6.8 | 194009070_BAL_DET |
| George Caster | OAK | -2.38 | 194009050_OAK_BOS |
| Ike Pearson | PHI | -1.78 | 194009072_ATL_PHI |
| Joe Haynes | MIN | -0.85 | 194009070_OAK_MIN |
| Jim Bagby | BOS | -0.81 | 194009050_OAK_BOS |
Based on accumulated WAA for this season up to 1940-09-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.85 | Bob Feller | 274.3 | CLE |
| +002+ | 9.33 | Bucky Walters | 267 | CIN |
| +006+ | 8.61 | Claude Passeau | 243.3 | CHN |
| +008+ | 8.23 | Bobo Newsom | 219.7 | DET |
| +014+ | 5.62 | Dick Errickson | 209.7 | ATL |
| +018+ | 5.23 | Marius Russo | 171 | NYA |
| +019+ | 5.21 | Vito Tamulis | 142.3 | LAN |
| +020+ | 5.19 | Johnny Rigney | 244.7 | CHA |
| +021+ | 4.89 | Lon Warneke | 196.3 | SLN |
| +022+ | 4.87 | Paul Derringer | 257.7 | CIN |
| +026+ | 4.41 | Ken Chase | 223 | MIN |
| +029+ | 4.22 | Vern Olsen | 138.3 | CHN |
| +030+ | 4.2 | Manny Salvo | 138.7 | ATL |
| +032+ | 4.01 | Dutch Leonard | 244.7 | MIN |
| +033+ | 4 | Jim Turner | 155.3 | CIN |
| +034+ | 3.91 | Larry French | 214 | CHN |
| +037+ | 3.87 | Rip Sewell | 149 | PIT |
| +036+ | 3.87 | Luke Hamlin | 157.3 | LAN |
| +040+ | 3.7 | Hal Schumacher | 183.7 | SFN |
| +044+ | 3.55 | Junior Thompson | 192.7 | CIN |
| +045+ | 3.5 | Carl Hubbell | 179.3 | SFN |
| +049+ | 3.4 | Hugh Mulcahy | 247 | PHI |
| +050+ | 3.37 | Red Ruffing | 201.7 | NYA |
| +051+ | 3.31 | Eddie Smith | 175.3 | CHA |
| +052+ | 3.3 | Bill Lohrman | 155.7 | SFN |
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