| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | 5.24 | 195108010_ATL_SLN |
| Ralph Branca | LAN | 4.41 | 195108010_LAN_PIT |
| Eddie Lopat | NYA | 4.07 | 195107300_DET_NYA |
| Bubba Church | PHI | 1.84 | 195107310_PHI_CIN |
| Bob Feller | CLE | 1.51 | 195107310_CLE_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Starr | MIN | -4.74 | 195108011_CLE_MIN |
| Alex Kellner | OAK | -2.79 | 195107310_CHA_OAK |
| Turk Lown | CHN | -0.98 | 195107300_SFN_CHN |
| Cliff Chambers | SLN | -0.93 | 195107300_ATL_SLN |
| Jim Hearn | SFN | -0.82 | 195107310_SFN_CHN |
Based on accumulated WAA for this season up to 1951-08-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 5.67 | Sal Maglie | 188.3 | SFN |
| +005+ | 5.66 | Warren Spahn | 186 | ATL |
| +007+ | 5.55 | Mike Garcia | 157.3 | CLE |
| +009+ | 4.69 | Preacher Roe | 170 | LAN |
| +012+ | 4.44 | Eddie Lopat | 153.7 | NYA |
| +013+ | 4.43 | Robin Roberts | 188 | PHI |
| +014+ | 4.42 | Don Newcombe | 160.7 | LAN |
| +019+ | 4.02 | Bubba Church | 164.7 | PHI |
| +020+ | 3.91 | Ralph Branca | 112 | LAN |
| +022+ | 3.8 | Vern Bickford | 151.7 | ATL |
| +023+ | 3.62 | Mickey McDermott | 131.7 | BOS |
| +029+ | 3.32 | Saul Rogovin | 140.7 | TOT |
| +032+ | 3.15 | Larry Jansen | 184 | SFN |
| +033+ | 3.14 | Bob Feller | 167 | CLE |
| +035+ | 2.91 | Connie Marrero | 132 | MIN |
| +037+ | 2.78 | Vic Raschi | 170.7 | NYA |
| +039+ | 2.66 | Allie Reynolds | 146.3 | NYA |
| +040+ | 2.65 | Howie Fox | 148 | CIN |
| +041+ | 2.64 | Russ Meyer | 157 | PHI |
| +042+ | 2.58 | Early Wynn | 176.3 | CLE |
| +055+ | 2.17 | Ned Garver | 144 | BAL |
| +058+ | 2.15 | Harry Perkowski | 81.3 | CIN |
| +059+ | 2.14 | Ken Raffensberger | 155.7 | CIN |
| +062+ | 2.09 | Gerry Staley | 158 | SLN |
| +063+ | 2.08 | Harry Brecheen | 91.7 | SLN |
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