| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bucky Walters | CIN | 9.26 | 194009151_CIN_LAN |
| Bob Feller | CLE | 8.59 | 194009151_OAK_CLE |
| Claude Passeau | CHN | 5.78 | 194009151_CHN_ATL |
| Bobo Newsom | DET | 5.02 | 194009140_NYA_DET |
| Dick Errickson | ATL | 2.79 | 194009130_SLN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| George Caster | OAK | -3.3 | 194009152_OAK_CLE |
| Bill Lee | CHN | -3.21 | 194009140_CHN_PHI |
| Ike Pearson | PHI | -2.56 | 194009151_SLN_PHI |
| Bob Harris | BAL | -2.1 | 194009140_MIN_BAL |
| Bob Klinger | PIT | -1.52 | 194009130_PIT_LAN |
Based on accumulated WAA for this season up to 1940-09-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.94 | Bob Feller | 293.3 | CLE |
| +003+ | 10.27 | Bucky Walters | 285 | CIN |
| +008+ | 8.51 | Claude Passeau | 258.3 | CHN |
| +009+ | 7.34 | Bobo Newsom | 236.3 | DET |
| +012+ | 6.02 | Paul Derringer | 277.7 | CIN |
| +014+ | 5.84 | Ken Chase | 240 | MIN |
| +015+ | 5.8 | Johnny Rigney | 263.7 | CHA |
| +018+ | 5.64 | Dick Errickson | 226.7 | ATL |
| +027+ | 4.83 | Vern Olsen | 147.3 | CHN |
| +028+ | 4.7 | Lon Warneke | 209.7 | SLN |
| +030+ | 4.5 | Larry French | 223 | CHN |
| +031+ | 4.48 | Marius Russo | 174 | NYA |
| +033+ | 4.35 | Jim Turner | 170 | CIN |
| +034+ | 4.25 | Rip Sewell | 168 | PIT |
| +036+ | 4.07 | Luke Hamlin | 177.3 | LAN |
| +038+ | 3.97 | Dutch Leonard | 261.7 | MIN |
| +039+ | 3.9 | Tommy Bridges | 185.7 | DET |
| +040+ | 3.83 | Hal Schumacher | 201.7 | SFN |
| +043+ | 3.71 | Manny Salvo | 152 | ATL |
| +046+ | 3.67 | Tiny Bonham | 70.3 | NYA |
| +047+ | 3.64 | Al Milnar | 207 | CLE |
| +048+ | 3.64 | Eddie Smith | 184.3 | CHA |
| +049+ | 3.63 | Thornton Lee | 212.7 | CHA |
| +051+ | 3.53 | Junior Thompson | 201.7 | CIN |
| +054+ | 3.37 | Red Ruffing | 208 | NYA |
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