| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tiny Bonham | NYA | 6.98 | 194306030_BAL_NYA |
| Johnny Vander Meer | CIN | 4.97 | 194306030_ATL_CIN |
| Mort Cooper | SLN | 4.47 | 194306040_PHI_SLN |
| Claude Passeau | CHN | 2.84 | 194306020_PHI_CHN |
| Max Butcher | PIT | 1.96 | 194306040_SFN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lum Harris | OAK | -5.55 | 194306020_DET_OAK |
| Dick Newsome | BOS | -3 | 194306030_CHA_BOS |
| Charlie Fuchs | PHI | -1.79 | 194306040_PHI_SLN |
| Chubby Dean | CLE | -1.53 | 194306030_CLE_OAK |
| Rube Melton | LAN | -1.45 | 194306040_LAN_CHN |
Based on accumulated WAA for this season up to 1943-06-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.31 | Mort Cooper | 81.7 | SLN |
| +002+ | 2.42 | Tex Hughson | 82 | BOS |
| +005+ | 2.23 | Hal Newhouser | 50.3 | DET |
| +007+ | 2.15 | Tiny Bonham | 69.7 | NYA |
| +008+ | 2.12 | Jesse Flores | 77.3 | OAK |
| +009+ | 2.08 | Dizzy Trout | 60.3 | DET |
| +013+ | 1.74 | Roger Wolff | 63 | OAK |
| +012+ | 1.74 | Nate Andrews | 78 | ATL |
| +015+ | 1.66 | Jack Kraus | 53.7 | PHI |
| +018+ | 1.57 | Johnny Niggeling | 57 | BAL |
| +021+ | 1.47 | Dutch Leonard | 77 | MIN |
| +024+ | 1.37 | Al Smith | 51.3 | CLE |
| +025+ | 1.33 | Denny Galehouse | 42 | BAL |
| +027+ | 1.32 | Xavier Rescigno | 50.7 | PIT |
| +028+ | 1.28 | Harry Brecheen | 21.7 | SLN |
| +029+ | 1.27 | Virgil Trucks | 57.7 | DET |
| XXXXX | 1.2 | Spud Chandler | 65.3 | NYA |
| XXXXX | 1.17 | Russ Christopher | 61 | OAK |
| XXXXX | 1.16 | Milo Candini | 19.3 | MIN |
| XXXXX | 1.14 | Jim Bagby | 71.7 | CLE |
| XXXXX | 1.08 | Red Barrett | 65.7 | ATL |
| XXXXX | 1.02 | Jake Wade | 16.7 | CHA |
| XXXXX | 1.01 | Howie Pollet | 57.3 | SLN |
| XXXXX | 0.97 | Thornton Lee | 21.7 | CHA |
| XXXXX | 0.96 | Johnnie Wittig | 55.3 | SFN |
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