| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Starr | MIN | -5.24 | 195108110_MIN_BOS |
| Virgil Trucks | DET | -2.31 | 195108100_BAL_DET |
| Alex Kellner | OAK | -1.87 | 195108092_OAK_BOS |
| Fred Sanford | BAL | -1.59 | 195108090_BAL_DET |
| Turk Lown | CHN | -1.46 | 195108090_CIN_CHN |
Based on accumulated WAA for this season up to 1951-08-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 6.44 | Mike Garcia | 174 | CLE |
| +005+ | 5.76 | Robin Roberts | 215 | PHI |
| +007+ | 5.63 | Eddie Lopat | 171.7 | NYA |
| +014+ | 4.72 | Warren Spahn | 204.3 | ATL |
| +015+ | 4.66 | Sal Maglie | 200.3 | SFN |
| +017+ | 4.57 | Preacher Roe | 179.3 | LAN |
| +018+ | 4.53 | Bubba Church | 180.7 | PHI |
| +019+ | 4.45 | Ralph Branca | 132 | LAN |
| +020+ | 4.12 | Bob Feller | 184.7 | CLE |
| +021+ | 4.03 | Mickey McDermott | 147.7 | BOS |
| +022+ | 4 | Vern Bickford | 159.7 | ATL |
| +030+ | 3.47 | Connie Marrero | 149 | MIN |
| +032+ | 3.41 | Early Wynn | 194.7 | CLE |
| +038+ | 3.11 | Vic Raschi | 188.7 | NYA |
| +039+ | 3.06 | Allie Reynolds | 162.7 | NYA |
| +040+ | 3.04 | Don Newcombe | 174.3 | LAN |
| +042+ | 2.92 | Saul Rogovin | 160 | TOT |
| +043+ | 2.9 | Billy Pierce | 165 | CHA |
| +044+ | 2.89 | Larry Jansen | 188.7 | SFN |
| +045+ | 2.63 | Ned Garver | 161.3 | BAL |
| +048+ | 2.6 | Russ Meyer | 167.3 | PHI |
| +051+ | 2.54 | Howie Fox | 163.7 | CIN |
| +061+ | 2.06 | Harry Perkowski | 81.3 | CIN |
| +063+ | 2 | Fred Hutchinson | 127 | DET |
| +065+ | 1.98 | Sam Zoldak | 89 | OAK |
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