| Starter | Tm | Tier | Game |
|---|---|---|---|
| Robin Roberts | PHI | 4.62 | 195109031_PHI_SFN |
| Mike Garcia | CLE | 4.09 | 195109020_BAL_CLE |
| Saul Rogovin | CHA | 2.85 | 195109040_CHA_CLE |
| Don Newcombe | LAN | 1.97 | 195109020_LAN_SFN |
| Chet Nichols | ATL | 1.64 | 195109032_ATL_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Starr | MIN | -5.67 | 195109031_MIN_BOS |
| Fred Sanford | BAL | -3.71 | 195109032_BAL_DET |
| Virgil Trucks | DET | -2.48 | 195109020_CHA_DET |
| Turk Lown | CHN | -1.9 | 195109032_PIT_CHN |
| Alex Kellner | OAK | -1.85 | 195109031_NYA_OAK |
Based on accumulated WAA for this season up to 1951-09-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +007+ | 6.68 | Mike Garcia | 223.7 | CLE |
| +008+ | 6.61 | Robin Roberts | 259 | PHI |
| +009+ | 6.33 | Warren Spahn | 249.3 | ATL |
| +012+ | 5.78 | Saul Rogovin | 201.7 | TOT |
| +013+ | 5.67 | Sal Maglie | 241 | SFN |
| +015+ | 5.51 | Eddie Lopat | 203 | NYA |
| +016+ | 5.35 | Early Wynn | 234 | CLE |
| +017+ | 5.28 | Preacher Roe | 212.3 | LAN |
| +020+ | 4.79 | Ralph Branca | 167 | LAN |
| +028+ | 3.99 | Don Newcombe | 218.7 | LAN |
| +027+ | 3.99 | Bob Feller | 226.3 | CLE |
| +031+ | 3.79 | Larry Jansen | 225.7 | SFN |
| +032+ | 3.75 | Mickey McDermott | 152.7 | BOS |
| +033+ | 3.74 | Vern Bickford | 159.7 | ATL |
| +034+ | 3.7 | Allie Reynolds | 182 | NYA |
| +036+ | 3.55 | Steve Gromek | 93 | CLE |
| +037+ | 3.53 | Bubba Church | 209 | PHI |
| +047+ | 3 | Connie Marrero | 173.3 | MIN |
| +049+ | 2.96 | Chet Nichols | 113.7 | ATL |
| +051+ | 2.93 | Max Lanier | 132 | SLN |
| +054+ | 2.8 | Mel Parnell | 192 | BOS |
| +058+ | 2.75 | Harry Perkowski | 89.7 | CIN |
| +060+ | 2.7 | Bob Lemon | 232.7 | CLE |
| +062+ | 2.54 | Vic Raschi | 215.7 | NYA |
| +061+ | 2.54 | Billy Pierce | 199 | CHA |
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