| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | 9.7 | 195107010_SFN_ATL |
| Sal Maglie | SFN | 7.23 | 195106300_SFN_ATL |
| Eddie Lopat | NYA | 3.45 | 195107010_BOS_NYA |
| Bob Feller | CLE | 3.24 | 195107011_DET_CLE |
| Bubba Church | PHI | 2.33 | 195106300_PHI_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Starr | BAL | -3.5 | 195106300_BAL_CHA |
| Cliff Chambers | SLN | -1.15 | 195106300_PIT_SLN |
| Bob Kuzava | NYA | -0.74 | 195106300_BOS_NYA |
| Alex Kellner | OAK | -0.69 | 195106292_MIN_OAK |
| Johnny Schmitz | LAN | -0.47 | 195106300_PHI_LAN |
Based on accumulated WAA for this season up to 1951-07-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.1 | Warren Spahn | 141 | ATL |
| +004+ | 4.65 | Sal Maglie | 139 | SFN |
| +008+ | 4.08 | Bob Feller | 118 | CLE |
| +009+ | 3.91 | Vern Bickford | 122 | ATL |
| +011+ | 3.76 | Eddie Lopat | 117 | NYA |
| +013+ | 3.31 | Allie Reynolds | 99.7 | NYA |
| +015+ | 3.23 | Vic Raschi | 128.7 | NYA |
| +016+ | 3.18 | Ralph Branca | 77 | LAN |
| +018+ | 3.09 | Robin Roberts | 134.7 | PHI |
| +019+ | 2.99 | Preacher Roe | 121 | LAN |
| +020+ | 2.87 | Don Newcombe | 119.7 | LAN |
| +028+ | 2.49 | Larry Jansen | 132 | SFN |
| +030+ | 2.41 | Russ Meyer | 106.7 | PHI |
| +034+ | 2.31 | Harry Brecheen | 59 | SLN |
| +035+ | 2.3 | Mike Garcia | 95.7 | CLE |
| +040+ | 2.22 | Joe Presko | 80 | SLN |
| +048+ | 1.96 | Randy Gumpert | 70.7 | CHA |
| +047+ | 1.96 | Bob Cain | 94.7 | TOT |
| +046+ | 1.96 | Bob Lemon | 115.7 | CLE |
| +049+ | 1.95 | Connie Marrero | 93.7 | MIN |
| +053+ | 1.83 | Paul Minner | 87.3 | CHN |
| +054+ | 1.79 | Bubba Church | 104.7 | PHI |
| +055+ | 1.78 | Gerry Staley | 117 | SLN |
| +057+ | 1.65 | Saul Rogovin | 82 | TOT |
| +060+ | 1.63 | Bob Chakales | 52.7 | CLE |
_