| Starter | Tm | Tier | Game |
|---|---|---|---|
| Johnny Sain | ATL | 8.6 | 194809211_SLN_ATL |
| Johnny Schmitz | CHN | 6.76 | 194809212_CHN_SFN |
| Gene Bearden | CLE | 3.06 | 194809200_OAK_CLE |
| Hal Newhouser | DET | 2.27 | 194809220_OAK_DET |
| Mel Parnell | BOS | 1.85 | 194809210_BOS_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sid Hudson | MIN | -6.52 | 194809220_MIN_BAL |
| Mickey Harris | BOS | -2.95 | 194809200_BOS_DET |
| Bill Kennedy | BAL | -2.5 | 194809200_NYA_BAL |
| Curt Simmons | PHI | -1.19 | 194809211_CIN_PHI |
| Dutch McCall | CHN | -0.81 | 194809222_CHN_SFN |
Based on accumulated WAA for this season up to 1948-09-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 9.48 | Johnny Sain | 293.7 | ATL |
| +006+ | 9.04 | Harry Brecheen | 215 | SLN |
| +008+ | 8.69 | Johnny Schmitz | 242 | CHN |
| +010+ | 8.46 | Bob Lemon | 279 | CLE |
| +011+ | 8.22 | Dutch Leonard | 221.7 | PHI |
| +019+ | 6.08 | Gene Bearden | 193.7 | CLE |
| +021+ | 5.59 | Hal Newhouser | 246.3 | DET |
| +022+ | 5.44 | Mel Parnell | 202.3 | BOS |
| +024+ | 5.05 | Preacher Roe | 167.7 | LAN |
| +025+ | 5 | Ray Scarborough | 160.3 | MIN |
| +033+ | 4.23 | Robin Roberts | 141.3 | PHI |
| +034+ | 4.2 | Joe Dobson | 239.7 | BOS |
| +035+ | 4.12 | Rex Barney | 224 | LAN |
| +038+ | 3.81 | Johnny Vander Meer | 215 | CIN |
| +039+ | 3.79 | Steve Gromek | 127 | CLE |
| +043+ | 3.62 | Warren Spahn | 245 | ATL |
| +046+ | 3.28 | Larry Jansen | 270 | SFN |
| +047+ | 3.21 | Bob Chesnes | 177.3 | PIT |
| +049+ | 3.18 | Vic Raschi | 213.3 | NYA |
| +050+ | 3.07 | Sheldon Jones | 191.3 | SFN |
| +052+ | 3.02 | Dizzy Trout | 178 | DET |
| +054+ | 2.84 | Elmer Riddle | 191 | PIT |
| +057+ | 2.79 | Tommy Byrne | 122.3 | NYA |
| +059+ | 2.68 | Bob Feller | 260 | CLE |
| +060+ | 2.67 | Joe Hatten | 200 | LAN |
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