| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tex Hughson | BOS | 8.32 | 194307211_CHA_BOS |
| Tiny Bonham | NYA | 8.21 | 194307181_OAK_NYA |
| Mort Cooper | SLN | 6.08 | 194307181_SLN_PIT |
| Hal Newhouser | DET | 3.65 | 194307210_DET_MIN |
| Elmer Riddle | CIN | 2.48 | 194307211_LAN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Milnar | CLE | -5.57 | 194307181_CLE_BAL |
| Ken Chase | SFN | -5.56 | 194307182_SFN_PHI |
| Dick Newsome | BOS | -5.3 | 194307181_BOS_MIN |
| Bill Dietrich | CHA | -1.5 | 194307211_CHA_BOS |
| Rube Melton | LAN | -1.38 | 194307182_LAN_ATL |
Based on accumulated WAA for this season up to 1943-07-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.39 | Tex Hughson | 177 | BOS |
| +002+ | 4.29 | Tiny Bonham | 119.3 | NYA |
| +003+ | 4.19 | Mort Cooper | 150.7 | SLN |
| +004+ | 4.16 | Hal Newhouser | 132 | DET |
| +010+ | 3.83 | Tommy Bridges | 110.7 | DET |
| +011+ | 3.71 | Spud Chandler | 142 | NYA |
| +012+ | 3.58 | Rip Sewell | 155 | PIT |
| +017+ | 3.02 | Elmer Riddle | 142.3 | CIN |
| +018+ | 3 | Al Smith | 107.7 | CLE |
| +019+ | 2.88 | Early Wynn | 143.7 | MIN |
| +023+ | 2.76 | Milo Candini | 87.7 | MIN |
| +025+ | 2.69 | Butch Wensloff | 120.3 | NYA |
| +026+ | 2.67 | Hi Bithorn | 142 | CHN |
| +028+ | 2.61 | Bob Muncrief | 109 | BAL |
| +031+ | 2.38 | Curt Davis | 73.3 | LAN |
| +033+ | 2.34 | Orval Grove | 94.7 | CHA |
| +035+ | 2.14 | Virgil Trucks | 102 | DET |
| +037+ | 2.08 | Schoolboy Rowe | 106 | PHI |
| +039+ | 2.06 | Denny Galehouse | 107.3 | BAL |
| +042+ | 2 | Vern Kennedy | 72.7 | CLE |
| +048+ | 1.74 | Max Butcher | 89.3 | PIT |
| +052+ | 1.66 | Nels Potter | 71.7 | BAL |
| +058+ | 1.48 | Claude Passeau | 137.7 | CHN |
| +059+ | 1.47 | Johnny Niggeling | 121.7 | BAL |
| +061+ | 1.43 | Ray Starr | 151.7 | CIN |
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