| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bobo Newsom | DET | 4.63 | 194009060_CLE_DET |
| Paul Derringer | CIN | 2.98 | 194009070_CIN_CHN |
| Dick Errickson | ATL | 2.38 | 194009081_ATL_PHI |
| Lon Warneke | SLN | 2.35 | 194009082_PIT_SLN |
| Johnny Rigney | CHA | 1.74 | 194009060_BAL_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Vern Kennedy | BAL | -6.8 | 194009070_BAL_DET |
| Ike Pearson | PHI | -1.78 | 194009072_ATL_PHI |
| Sid Hudson | MIN | -1.08 | 194009081_OAK_MIN |
| Bob Klinger | PIT | -1.04 | 194009082_PIT_SLN |
| Porter Vaughan | OAK | -0.59 | 194009081_OAK_MIN |
Based on accumulated WAA for this season up to 1940-09-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.05 | Bob Feller | 276.3 | CLE |
| +002+ | 9.38 | Bucky Walters | 267 | CIN |
| +007+ | 8.64 | Claude Passeau | 243.3 | CHN |
| +009+ | 8.26 | Bobo Newsom | 219.7 | DET |
| +010+ | 6.29 | Dick Errickson | 221 | ATL |
| +018+ | 5.25 | Marius Russo | 171 | NYA |
| +019+ | 5.22 | Vito Tamulis | 142.3 | LAN |
| +020+ | 5.21 | Johnny Rigney | 244.7 | CHA |
| +022+ | 4.92 | Paul Derringer | 257.7 | CIN |
| +023+ | 4.89 | Vern Olsen | 147.3 | CHN |
| +029+ | 4.5 | Ken Chase | 223 | MIN |
| +030+ | 4.34 | Lon Warneke | 200.7 | SLN |
| +032+ | 4.2 | Manny Salvo | 138.7 | ATL |
| +033+ | 4.18 | Jim Turner | 161.3 | CIN |
| +034+ | 4.11 | Dutch Leonard | 244.7 | MIN |
| +036+ | 3.98 | Luke Hamlin | 163 | LAN |
| +037+ | 3.93 | Larry French | 214 | CHN |
| +040+ | 3.69 | Hal Schumacher | 183.7 | SFN |
| +042+ | 3.58 | Junior Thompson | 192.7 | CIN |
| +043+ | 3.52 | Bill Lohrman | 166.7 | SFN |
| +048+ | 3.39 | Red Ruffing | 201.7 | NYA |
| +049+ | 3.36 | Hugh Mulcahy | 247 | PHI |
| +050+ | 3.32 | Eddie Smith | 175.3 | CHA |
| +052+ | 3.21 | Tommy Bridges | 176.7 | DET |
| +054+ | 3.19 | Rip Sewell | 150 | PIT |
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