| Starter | Tm | Tier | Game |
|---|---|---|---|
| Harry Brecheen | SLN | 9.1 | 194808140_SLN_PIT |
| Johnny Schmitz | CHN | 6.34 | 194808130_CHN_CIN |
| Hal Newhouser | DET | 6.18 | 194808130_DET_BAL |
| Joe Dobson | BOS | 3.07 | 194808140_BOS_MIN |
| Gene Bearden | CLE | 2.23 | 194808122_CLE_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Early Wynn | MIN | -3.03 | 194808130_BOS_MIN |
| Al Gettel | CHA | -1.47 | 194808140_CLE_CHA |
| Red Munger | SLN | -1.17 | 194808130_SLN_PIT |
| Curt Simmons | PHI | -1.03 | 194808130_SFN_PHI |
| Lou Brissie | OAK | -0.22 | 194808130_OAK_NYA |
Based on accumulated WAA for this season up to 1948-08-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.14 | Dutch Leonard | 163.7 | PHI |
| +004+ | 7.05 | Harry Brecheen | 163 | SLN |
| +009+ | 6.44 | Johnny Sain | 206.7 | ATL |
| +012+ | 5.65 | Johnny Schmitz | 182.3 | CHN |
| +014+ | 5.12 | Bob Lemon | 205 | CLE |
| +016+ | 4.79 | Ray Scarborough | 124 | MIN |
| +017+ | 4.77 | Gene Bearden | 126.7 | CLE |
| +022+ | 4.35 | Hal Newhouser | 180.7 | DET |
| +023+ | 4.31 | Joe Dobson | 175.7 | BOS |
| +029+ | 3.66 | Dizzy Trout | 156.3 | DET |
| +034+ | 3.27 | Mel Parnell | 141.3 | BOS |
| +037+ | 2.88 | Bob Chesnes | 110.7 | PIT |
| +039+ | 2.81 | Dave Koslo | 105.3 | SFN |
| +040+ | 2.81 | Vic Raschi | 151.7 | NYA |
| +041+ | 2.68 | Walt Masterson | 137 | MIN |
| +043+ | 2.61 | Steve Gromek | 95.3 | CLE |
| +045+ | 2.57 | Ned Garver | 135.7 | BAL |
| +046+ | 2.56 | Russ Meyer | 135.7 | CHN |
| +049+ | 2.46 | Robin Roberts | 79.3 | PHI |
| +050+ | 2.45 | Tommy Byrne | 79 | NYA |
| +052+ | 2.37 | Nels Potter | 97 | TOT |
| +055+ | 2.35 | Preacher Roe | 113.7 | LAN |
| +056+ | 2.3 | Rex Barney | 148 | LAN |
| +057+ | 2.26 | Eddie Lopat | 150.3 | NYA |
| +058+ | 2.2 | Satchel Paige | 38.3 | CLE |
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