| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | 5.37 | 195109051_SFN_ATL |
| Robin Roberts | PHI | 4.62 | 195109031_PHI_SFN |
| Sal Maglie | SFN | 3.46 | 195109052_SFN_ATL |
| Saul Rogovin | CHA | 2.85 | 195109040_CHA_CLE |
| Early Wynn | CLE | 2.81 | 195109050_DET_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Werle | PIT | -7.47 | 195109050_CIN_PIT |
| Dick Starr | MIN | -5.67 | 195109031_MIN_BOS |
| Fred Sanford | BAL | -3.71 | 195109032_BAL_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 1951-09-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +007+ | 6.67 | Mike Garcia | 223.7 | CLE |
| +008+ | 6.62 | Robin Roberts | 259 | PHI |
| +009+ | 6.54 | Warren Spahn | 258.3 | ATL |
| +010+ | 6.31 | Sal Maglie | 250 | SFN |
| +013+ | 5.78 | Saul Rogovin | 201.7 | TOT |
| +014+ | 5.77 | Early Wynn | 243 | CLE |
| +016+ | 5.5 | Eddie Lopat | 203 | NYA |
| +017+ | 5.27 | Preacher Roe | 212.3 | LAN |
| +018+ | 5.22 | Ralph Branca | 176 | LAN |
| +029+ | 3.98 | Don Newcombe | 218.7 | LAN |
| +028+ | 3.98 | Bob Feller | 226.3 | CLE |
| +030+ | 3.9 | Mickey McDermott | 154.3 | BOS |
| +032+ | 3.79 | Larry Jansen | 225.7 | SFN |
| +033+ | 3.73 | Vern Bickford | 159.7 | ATL |
| +034+ | 3.69 | Allie Reynolds | 182 | NYA |
| +035+ | 3.55 | Steve Gromek | 93 | CLE |
| +036+ | 3.54 | Bubba Church | 209 | PHI |
| +047+ | 3.14 | Sam Zoldak | 116 | OAK |
| +049+ | 2.96 | Chet Nichols | 113.7 | ATL |
| +052+ | 2.91 | Max Lanier | 132 | SLN |
| +054+ | 2.86 | Connie Marrero | 180.3 | MIN |
| +056+ | 2.8 | Mel Parnell | 192 | BOS |
| +058+ | 2.74 | Harry Perkowski | 89.7 | CIN |
| +059+ | 2.71 | Harry Brecheen | 138.7 | SLN |
| +062+ | 2.69 | Bob Lemon | 232.7 | CLE |
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