| Starter | Tm | Tier | Game |
|---|---|---|---|
| Johnny Sain | ATL | 8.74 | 194809250_SFN_ATL |
| Dutch Leonard | PHI | 5.7 | 194809250_LAN_PHI |
| Gene Bearden | CLE | 3.27 | 194809280_CHA_CLE |
| Hal Newhouser | DET | 2.67 | 194809260_CLE_DET |
| Mel Parnell | BOS | 2.36 | 194809260_BOS_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Kennedy | BAL | -2.56 | 194809250_CHA_BAL |
| Dutch McCall | CHN | -1.32 | 194809280_CIN_CHN |
| Jack Kramer | BOS | -0.81 | 194809250_BOS_NYA |
| Bill Wight | CHA | -0.52 | 194809280_CHA_CLE |
| Howie Fox | CIN | -0.37 | 194809250_CIN_PIT |
Based on accumulated WAA for this season up to 1948-09-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 9.87 | Johnny Sain | 300.7 | ATL |
| +005+ | 9.69 | Harry Brecheen | 224 | SLN |
| +009+ | 8.67 | Johnny Schmitz | 242 | CHN |
| +010+ | 8.65 | Dutch Leonard | 225.7 | PHI |
| +011+ | 8.23 | Bob Lemon | 285.3 | CLE |
| +016+ | 7.16 | Gene Bearden | 211.7 | CLE |
| +021+ | 5.6 | Preacher Roe | 174 | LAN |
| +022+ | 5.5 | Hal Newhouser | 254.3 | DET |
| +024+ | 5.28 | Ray Scarborough | 176.3 | MIN |
| +028+ | 4.9 | Mel Parnell | 205.3 | BOS |
| +027+ | 4.9 | Rex Barney | 233 | LAN |
| +035+ | 3.9 | Robin Roberts | 146.3 | PHI |
| +037+ | 3.79 | Steve Gromek | 127 | CLE |
| +038+ | 3.72 | Joe Dobson | 241 | BOS |
| +043+ | 3.56 | Sheldon Jones | 200.3 | SFN |
| +044+ | 3.41 | Nels Potter | 111.3 | TOT |
| +045+ | 3.39 | Larry Jansen | 277 | SFN |
| +046+ | 3.37 | Johnny Vander Meer | 223 | CIN |
| +047+ | 3.33 | Bob Feller | 269 | CLE |
| +048+ | 3.25 | Tommy Byrne | 131.3 | NYA |
| +050+ | 3.08 | Dizzy Trout | 181 | DET |
| +054+ | 2.81 | Bob Chesnes | 186.3 | PIT |
| +060+ | 2.66 | Satchel Paige | 72.7 | CLE |
| +059+ | 2.66 | Spec Shea | 155.7 | NYA |
| +062+ | 2.64 | Ned Garver | 183 | BAL |
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