| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eddie Lopat | NYA | 4.14 | 195108100_NYA_OAK |
| Preacher Roe | LAN | 3.9 | 195108081_SFN_LAN |
| Sal Maglie | SFN | 3.66 | 195108082_SFN_LAN |
| Mickey McDermott | BOS | 2.43 | 195108091_OAK_BOS |
| Bubba Church | PHI | 2.34 | 195108090_ATL_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Virgil Trucks | DET | -2.31 | 195108100_BAL_DET |
| Tommy Byrne | BAL | -2.04 | 195108080_BAL_CLE |
| Alex Kellner | OAK | -1.87 | 195108092_OAK_BOS |
| Turk Lown | CHN | -1.46 | 195108090_CIN_CHN |
| Jim Wilson | ATL | -1.23 | 195108080_ATL_PHI |
Based on accumulated WAA for this season up to 1951-08-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 6.49 | Mike Garcia | 174 | CLE |
| +006+ | 5.72 | Eddie Lopat | 171.7 | NYA |
| +007+ | 5.68 | Warren Spahn | 198.7 | ATL |
| +011+ | 4.95 | Robin Roberts | 206 | PHI |
| +014+ | 4.72 | Sal Maglie | 200.3 | SFN |
| +015+ | 4.61 | Preacher Roe | 179.3 | LAN |
| +016+ | 4.58 | Bubba Church | 180.7 | PHI |
| +019+ | 4.17 | Bob Feller | 184.7 | CLE |
| +020+ | 4.07 | Mickey McDermott | 147.7 | BOS |
| +021+ | 4.03 | Vern Bickford | 159.7 | ATL |
| +024+ | 3.83 | Ralph Branca | 123 | LAN |
| +029+ | 3.52 | Connie Marrero | 149 | MIN |
| +033+ | 3.2 | Vic Raschi | 188.7 | NYA |
| +037+ | 3.08 | Don Newcombe | 174.3 | LAN |
| +040+ | 2.95 | Larry Jansen | 188.7 | SFN |
| +039+ | 2.95 | Saul Rogovin | 160 | TOT |
| +041+ | 2.94 | Allie Reynolds | 154.3 | NYA |
| +042+ | 2.93 | Billy Pierce | 165 | CHA |
| +043+ | 2.8 | Early Wynn | 185.7 | CLE |
| +045+ | 2.67 | Ned Garver | 161.3 | BAL |
| +048+ | 2.65 | Russ Meyer | 167.3 | PHI |
| +051+ | 2.57 | Howie Fox | 163.7 | CIN |
| +061+ | 2.08 | Harry Perkowski | 81.3 | CIN |
| +063+ | 2.03 | Fred Hutchinson | 127 | DET |
| +064+ | 2.02 | Sam Zoldak | 89 | OAK |
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