| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tiny Bonham | NYA | 7.37 | 194306272_NYA_BOS |
| Tex Hughson | BOS | 7.06 | 194306300_BOS_DET |
| Mort Cooper | SLN | 4.88 | 194306271_SLN_CHN |
| Hal Newhouser | DET | 3.91 | 194306271_DET_BAL |
| Johnny Vander Meer | CIN | 2.86 | 194306301_CIN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ken Chase | SFN | -7.5 | 194306302_SLN_SFN |
| Johnny Podgajny | PIT | -1.61 | 194306271_PIT_CIN |
| Steve Sundra | BAL | -1.52 | 194306272_DET_BAL |
| Rube Melton | LAN | -1 | 194306272_LAN_PHI |
| Russ Christopher | OAK | -0.65 | 194306272_OAK_MIN |
Based on accumulated WAA for this season up to 1943-06-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.78 | Tex Hughson | 141 | BOS |
| +002+ | 4.56 | Hal Newhouser | 95.7 | DET |
| +003+ | 3.57 | Milo Candini | 61.3 | MIN |
| +006+ | 3.09 | Mort Cooper | 121.7 | SLN |
| +007+ | 2.81 | Tiny Bonham | 92.3 | NYA |
| +012+ | 2.32 | Howie Pollet | 99.3 | SLN |
| +014+ | 2.29 | Denny Galehouse | 76.3 | BAL |
| +015+ | 2.19 | Spud Chandler | 106.7 | NYA |
| +016+ | 2.19 | Johnny Niggeling | 97.7 | BAL |
| +022+ | 1.97 | Schoolboy Rowe | 79.7 | PHI |
| +024+ | 1.93 | Curt Davis | 47 | LAN |
| +025+ | 1.92 | Virgil Trucks | 91 | DET |
| +026+ | 1.88 | Rip Sewell | 116 | PIT |
| +027+ | 1.85 | Elmer Riddle | 102.7 | CIN |
| +028+ | 1.79 | Max Lanier | 77.3 | SLN |
| +031+ | 1.75 | Red Barrett | 102 | ATL |
| +030+ | 1.75 | Early Wynn | 107 | MIN |
| +037+ | 1.6 | Nels Potter | 44.3 | BAL |
| +038+ | 1.59 | Al Smith | 72.3 | CLE |
| +040+ | 1.56 | Jack Hallett | 47.7 | PIT |
| +041+ | 1.53 | Nate Andrews | 118.7 | ATL |
| +043+ | 1.45 | Bob Muncrief | 70.7 | BAL |
| +051+ | 1.29 | Hi Bithorn | 109 | CHN |
| XXXXX | 1.21 | Butch Wensloff | 76.3 | NYA |
| XXXXX | 1.17 | Jesse Flores | 108 | OAK |
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