| Starter | Tm | Tier | Game |
|---|---|---|---|
| Johnny Sain | ATL | 8.74 | 194809250_SFN_ATL |
| Harry Brecheen | SLN | 8.24 | 194809240_SLN_CHN |
| Bob Lemon | CLE | 7 | 194809240_CLE_DET |
| Dutch Leonard | PHI | 5.7 | 194809250_LAN_PHI |
| Hal Newhouser | DET | 2.67 | 194809260_CLE_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Herm Wehmeier | CIN | -3.99 | 194809240_CIN_PIT |
| Bill Kennedy | BAL | -2.56 | 194809250_CHA_BAL |
| Al Gettel | CHA | -0.94 | 194809240_CHA_BAL |
| Jack Kramer | BOS | -0.81 | 194809250_BOS_NYA |
| Howie Pollet | SLN | -0.36 | 194809250_SLN_CHN |
Based on accumulated WAA for this season up to 1948-09-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 9.92 | Johnny Sain | 300.7 | ATL |
| +005+ | 9.68 | Harry Brecheen | 224 | SLN |
| +009+ | 8.66 | Johnny Schmitz | 242 | CHN |
| +010+ | 8.59 | Dutch Leonard | 225.7 | PHI |
| +011+ | 8.23 | Bob Lemon | 285.3 | CLE |
| +018+ | 6.31 | Gene Bearden | 202.7 | CLE |
| +021+ | 5.49 | Hal Newhouser | 254.3 | DET |
| +022+ | 5.2 | Preacher Roe | 169.3 | LAN |
| +025+ | 4.96 | Rex Barney | 233 | LAN |
| +026+ | 4.9 | Mel Parnell | 205.3 | BOS |
| +031+ | 4.41 | Ray Scarborough | 167.3 | MIN |
| +034+ | 4.22 | Joe Dobson | 239.7 | BOS |
| +037+ | 3.86 | Robin Roberts | 146.3 | PHI |
| +038+ | 3.83 | Johnny Vander Meer | 215 | CIN |
| +039+ | 3.79 | Steve Gromek | 127 | CLE |
| +044+ | 3.61 | Warren Spahn | 245 | ATL |
| +045+ | 3.51 | Sheldon Jones | 200.3 | SFN |
| +047+ | 3.32 | Larry Jansen | 277 | SFN |
| +046+ | 3.32 | Bob Feller | 269 | CLE |
| +049+ | 3.24 | Tommy Byrne | 131.3 | NYA |
| +050+ | 3.08 | Dizzy Trout | 181 | DET |
| +051+ | 3.05 | Joe Hatten | 206.3 | LAN |
| +054+ | 2.96 | Nels Potter | 106.3 | TOT |
| +057+ | 2.81 | Bob Chesnes | 186.3 | PIT |
| +060+ | 2.66 | Ralph Branca | 206.7 | LAN |
_