| Starter | Tm | Tier | Game |
|---|---|---|---|
| Harry Brecheen | SLN | 9.55 | 194808240_ATL_SLN |
| Bob Lemon | CLE | 4.68 | 194808250_CLE_BOS |
| Johnny Sain | ATL | 4.44 | 194808240_ATL_SLN |
| Ray Scarborough | MIN | 2.25 | 194808250_BAL_MIN |
| Eddie Lopat | NYA | 1.67 | 194808240_CHA_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Early Wynn | MIN | -4.42 | 194808240_BAL_MIN |
| Bill Kennedy | BAL | -2.22 | 194808240_BAL_MIN |
| Dutch McCall | CHN | -1.99 | 194808250_SFN_CHN |
| Howie Fox | CIN | -1.83 | 194808250_PHI_CIN |
| Al Gettel | CHA | -1.42 | 194808230_CHA_NYA |
Based on accumulated WAA for this season up to 1948-08-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 7.92 | Dutch Leonard | 171.7 | PHI |
| +007+ | 7.01 | Harry Brecheen | 178.3 | SLN |
| +008+ | 6.93 | Bob Lemon | 231 | CLE |
| +011+ | 6.29 | Johnny Schmitz | 200.3 | CHN |
| +016+ | 5.65 | Gene Bearden | 145 | CLE |
| +017+ | 5.55 | Johnny Sain | 225 | ATL |
| +018+ | 5.38 | Ray Scarborough | 149.3 | MIN |
| +019+ | 4.66 | Ted Wilks | 104.3 | SLN |
| +025+ | 3.93 | Vic Raschi | 165.7 | NYA |
| +027+ | 3.71 | Bob Chesnes | 128.3 | PIT |
| +028+ | 3.67 | Mel Parnell | 150.3 | BOS |
| +030+ | 3.59 | Dizzy Trout | 156.3 | DET |
| +032+ | 3.53 | Robin Roberts | 94.3 | PHI |
| +036+ | 3.42 | Hal Newhouser | 185 | DET |
| +037+ | 3.38 | Joe Dobson | 190.7 | BOS |
| +039+ | 3.26 | Rex Barney | 165.7 | LAN |
| +043+ | 2.92 | Ned Garver | 141.7 | BAL |
| +045+ | 2.84 | Eddie Lopat | 176 | NYA |
| +046+ | 2.82 | Steve Gromek | 100 | CLE |
| +047+ | 2.78 | Sheldon Jones | 154.7 | SFN |
| +048+ | 2.75 | Elmer Riddle | 157.7 | PIT |
| +051+ | 2.64 | Satchel Paige | 49.7 | CLE |
| +052+ | 2.61 | Tommy Byrne | 83 | NYA |
| +055+ | 2.53 | Bob Porterfield | 39 | NYA |
| +059+ | 2.39 | Preacher Roe | 119.3 | LAN |
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