| Starter | Tm | Tier | Game |
|---|---|---|---|
| Spud Chandler | NYA | 11.38 | 194309191_NYA_MIN |
| Mort Cooper | SLN | 6.35 | 194309170_CHN_SLN |
| Tommy Bridges | DET | 3.8 | 194309192_DET_CLE |
| Elmer Riddle | CIN | 3.1 | 194309191_CIN_PIT |
| Nate Andrews | ATL | 2.27 | 194309181_PHI_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pinky Woods | BOS | -4.32 | 194309192_BOS_OAK |
| Ken Chase | SFN | -3.35 | 194309170_LAN_SFN |
| Don Black | OAK | -2.21 | 194309180_BOS_OAK |
| Bobo Newsom | MIN | -2.14 | 194309170_NYA_MIN |
| Al Gerheauser | PHI | -1.05 | 194309181_PHI_ATL |
Based on accumulated WAA for this season up to 1943-09-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.82 | Spud Chandler | 236 | NYA |
| +004+ | 6.75 | Mort Cooper | 260 | SLN |
| +006+ | 5.77 | Max Lanier | 195.3 | SLN |
| +011+ | 4.99 | Tiny Bonham | 213.7 | NYA |
| +012+ | 4.97 | Rip Sewell | 265.3 | PIT |
| +013+ | 4.9 | Tommy Bridges | 185.7 | DET |
| +017+ | 4.36 | Tex Hughson | 247 | BOS |
| +018+ | 4.35 | Nate Andrews | 254 | ATL |
| +021+ | 4.01 | Whit Wyatt | 165.3 | LAN |
| +028+ | 3.69 | Early Wynn | 248.7 | MIN |
| +030+ | 3.59 | Milo Candini | 156 | MIN |
| +032+ | 3.51 | Dizzy Trout | 219.3 | DET |
| +034+ | 3.42 | Al Smith | 191.7 | CLE |
| +035+ | 3.36 | Al Brazle | 71 | SLN |
| +036+ | 3.35 | Butch Wensloff | 203.3 | NYA |
| +037+ | 3.33 | Mickey Haefner | 147.3 | MIN |
| +039+ | 3.27 | Elmer Riddle | 233.3 | CIN |
| +041+ | 3.16 | Hi Bithorn | 222 | CHN |
| +043+ | 3.11 | Vern Kennedy | 141.3 | CLE |
| +046+ | 3.01 | Max Butcher | 175.7 | PIT |
| +047+ | 2.98 | Denny Galehouse | 199 | BAL |
| +048+ | 2.93 | Bob Muncrief | 193 | BAL |
| +051+ | 2.76 | Ed Hanyzewski | 116.7 | CHN |
| +053+ | 2.7 | Harry Brecheen | 125.3 | SLN |
| +055+ | 2.67 | Schoolboy Rowe | 185.3 | PHI |
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