| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | 9.7 | 195107010_SFN_ATL |
| Eddie Lopat | NYA | 3.45 | 195107010_BOS_NYA |
| Bob Feller | CLE | 3.24 | 195107011_DET_CLE |
| Preacher Roe | LAN | 2.38 | 195107020_LAN_ATL |
| Harry Brecheen | SLN | 1.43 | 195107030_SLN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sid Hudson | MIN | -2.8 | 195107030_BOS_MIN |
| Ray Scarborough | BOS | -1.72 | 195107030_BOS_MIN |
| Jim Hearn | SFN | -1.59 | 195107020_PHI_SFN |
| Johnny Schmitz | LAN | -0.97 | 195107030_LAN_ATL |
| Bobby Shantz | OAK | -0.67 | 195107020_NYA_OAK |
Based on accumulated WAA for this season up to 1951-07-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.05 | Warren Spahn | 141 | ATL |
| +005+ | 4.52 | Sal Maglie | 139 | SFN |
| +009+ | 4.06 | Bob Feller | 118 | CLE |
| +011+ | 3.87 | Vern Bickford | 122 | ATL |
| +012+ | 3.71 | Eddie Lopat | 117 | NYA |
| +013+ | 3.61 | Preacher Roe | 130 | LAN |
| +015+ | 3.18 | Vic Raschi | 128.7 | NYA |
| +016+ | 3.16 | Ralph Branca | 77 | LAN |
| +017+ | 3.1 | Allie Reynolds | 108.7 | NYA |
| +019+ | 2.99 | Robin Roberts | 134.7 | PHI |
| +021+ | 2.83 | Don Newcombe | 119.7 | LAN |
| +027+ | 2.38 | Mike Garcia | 101 | CLE |
| +036+ | 2.24 | Larry Jansen | 135 | SFN |
| +039+ | 2.21 | Joe Presko | 80 | SLN |
| +041+ | 2.2 | Russ Meyer | 109.7 | PHI |
| +045+ | 2.07 | Saul Rogovin | 91 | TOT |
| +047+ | 1.96 | Connie Marrero | 102.7 | MIN |
| +048+ | 1.96 | Harry Perkowski | 59.7 | CIN |
| +049+ | 1.94 | Randy Gumpert | 70.7 | CHA |
| +050+ | 1.93 | Bob Cain | 94.7 | TOT |
| +052+ | 1.83 | Paul Minner | 87.3 | CHN |
| +053+ | 1.79 | Harry Brecheen | 64.7 | SLN |
| +054+ | 1.78 | Bob Lemon | 122.7 | CLE |
| +055+ | 1.76 | Gerry Staley | 117 | SLN |
| +057+ | 1.71 | Bubba Church | 104.7 | PHI |
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