| Starter | Tm | Tier | Game |
|---|---|---|---|
| Harry Brecheen | SLN | 9.55 | 194808240_ATL_SLN |
| Dutch Leonard | PHI | 9.27 | 194808222_PHI_SFN |
| Johnny Schmitz | CHN | 5.76 | 194808220_CIN_CHN |
| Hal Newhouser | DET | 4.56 | 194808220_BAL_DET |
| Johnny Sain | ATL | 4.44 | 194808240_ATL_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Early Wynn | MIN | -4.42 | 194808240_BAL_MIN |
| Mickey Harris | BOS | -3.45 | 194808220_MIN_BOS |
| Bill Kennedy | BAL | -2.22 | 194808240_BAL_MIN |
| Monty Kennedy | SFN | -1.93 | 194808222_PHI_SFN |
| Marino Pieretti | CHA | -1.51 | 194808222_CHA_CLE |
Based on accumulated WAA for this season up to 1948-08-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 7.85 | Dutch Leonard | 171.7 | PHI |
| +007+ | 6.96 | Harry Brecheen | 178.3 | SLN |
| +010+ | 6.23 | Johnny Schmitz | 200.3 | CHN |
| +012+ | 6.01 | Bob Lemon | 222 | CLE |
| +016+ | 5.61 | Gene Bearden | 145 | CLE |
| +017+ | 5.48 | Johnny Sain | 225 | ATL |
| +018+ | 4.78 | Ray Scarborough | 141.3 | MIN |
| +019+ | 4.63 | Ted Wilks | 104.3 | SLN |
| +026+ | 3.89 | Vic Raschi | 165.7 | NYA |
| +027+ | 3.68 | Bob Chesnes | 128.3 | PIT |
| +031+ | 3.62 | Mel Parnell | 150.3 | BOS |
| +034+ | 3.54 | Dizzy Trout | 156.3 | DET |
| +035+ | 3.49 | Robin Roberts | 94.3 | PHI |
| +037+ | 3.37 | Hal Newhouser | 185 | DET |
| +039+ | 3.33 | Joe Dobson | 190.7 | BOS |
| +040+ | 3.2 | Rex Barney | 165.7 | LAN |
| +043+ | 2.87 | Ned Garver | 141.7 | BAL |
| +044+ | 2.8 | Steve Gromek | 100 | CLE |
| +045+ | 2.79 | Eddie Lopat | 176 | NYA |
| +046+ | 2.73 | Sheldon Jones | 154.7 | SFN |
| +047+ | 2.71 | Elmer Riddle | 157.7 | PIT |
| +048+ | 2.63 | Satchel Paige | 49.7 | CLE |
| +050+ | 2.61 | Tommy Byrne | 81 | NYA |
| +056+ | 2.35 | Preacher Roe | 119.3 | LAN |
| +058+ | 2.28 | Dave Koslo | 117.3 | SFN |
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