| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tex Hughson | BOS | 10.26 | 194307301_DET_BOS |
| Tiny Bonham | NYA | 8.39 | 194307300_CLE_NYA |
| Mort Cooper | SLN | 6.49 | 194307300_PHI_SLN |
| Tommy Bridges | DET | 4.08 | 194308011_DET_NYA |
| Rip Sewell | PIT | 3.38 | 194308012_ATL_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Newsome | BOS | -6.57 | 194308012_CLE_BOS |
| Bobo Newsom | BAL | -2.48 | 194307300_BAL_OAK |
| Rube Melton | LAN | -1.61 | 194307300_LAN_CHN |
| Johnnie Wittig | SFN | -1.13 | 194308011_SFN_CIN |
| Bucky Walters | CIN | -1.08 | 194307310_SFN_CIN |
Based on accumulated WAA for this season up to 1943-08-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.27 | Tex Hughson | 187.7 | BOS |
| +002+ | 5.22 | Mort Cooper | 179.7 | SLN |
| +004+ | 4.66 | Rip Sewell | 182 | PIT |
| +005+ | 4.59 | Spud Chandler | 164 | NYA |
| +007+ | 4.43 | Tiny Bonham | 137.3 | NYA |
| +011+ | 3.8 | Elmer Riddle | 160.3 | CIN |
| +017+ | 3.46 | Hi Bithorn | 160 | CHN |
| +018+ | 3.19 | Early Wynn | 168.7 | MIN |
| +019+ | 3.11 | Tommy Bridges | 126.7 | DET |
| +025+ | 2.92 | Bob Muncrief | 127.7 | BAL |
| +027+ | 2.7 | Butch Wensloff | 136.7 | NYA |
| +028+ | 2.7 | Schoolboy Rowe | 123.3 | PHI |
| +029+ | 2.66 | Milo Candini | 96.7 | MIN |
| +034+ | 2.49 | Al Smith | 119.7 | CLE |
| +037+ | 2.35 | Denny Galehouse | 120.3 | BAL |
| +038+ | 2.27 | Orval Grove | 111.7 | CHA |
| +043+ | 2.19 | Virgil Trucks | 109 | DET |
| +045+ | 2.15 | Max Lanier | 117 | SLN |
| +047+ | 2.05 | Jim Bagby | 185 | CLE |
| +052+ | 1.89 | Hank Wyse | 84.7 | CHN |
| +053+ | 1.87 | Ray Starr | 170.7 | CIN |
| +055+ | 1.82 | Red Barrett | 158 | ATL |
| +058+ | 1.73 | Claude Passeau | 164.7 | CHN |
| +059+ | 1.7 | Vern Kennedy | 87.7 | CLE |
| +061+ | 1.69 | Hank Borowy | 142.7 | NYA |
_