| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Feller | CLE | 4.81 | 195107170_BOS_CLE |
| Robin Roberts | PHI | 3.05 | 195107171_CIN_PHI |
| Howie Fox | CIN | 2.51 | 195107171_CIN_PHI |
| Saul Rogovin | CHA | 1.92 | 195107170_NYA_CHA |
| Allie Reynolds | NYA | 1.85 | 195107170_NYA_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Widmar | BAL | -2.32 | 195107160_BOS_BAL |
| Alex Kellner | OAK | -2.02 | 195107170_OAK_DET |
| Mel Queen | PIT | -1.96 | 195107160_PIT_SFN |
| Herm Wehmeier | CIN | -1.21 | 195107182_CIN_PHI |
| Red Munger | SLN | -1.05 | 195107170_SLN_ATL |
Based on accumulated WAA for this season up to 1951-07-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 4.74 | Warren Spahn | 153.3 | ATL |
| +007+ | 4.36 | Bob Feller | 143.3 | CLE |
| +009+ | 4.28 | Mike Garcia | 127.7 | CLE |
| +013+ | 3.89 | Sal Maglie | 159.3 | SFN |
| +014+ | 3.86 | Preacher Roe | 146 | LAN |
| +016+ | 3.78 | Vern Bickford | 126 | ATL |
| +017+ | 3.75 | Bubba Church | 139 | PHI |
| +018+ | 3.64 | Saul Rogovin | 127 | TOT |
| +025+ | 3.38 | Eddie Lopat | 128 | NYA |
| +026+ | 3.18 | Mickey McDermott | 108.3 | BOS |
| +027+ | 3.16 | Robin Roberts | 162.7 | PHI |
| +028+ | 3.13 | Connie Marrero | 120.7 | MIN |
| +030+ | 3.09 | Don Newcombe | 133.7 | LAN |
| +032+ | 2.93 | Allie Reynolds | 127.7 | NYA |
| +035+ | 2.67 | Howie Fox | 122.7 | CIN |
| +038+ | 2.49 | Fred Hutchinson | 92 | DET |
| +039+ | 2.48 | Gerry Staley | 142.7 | SLN |
| +041+ | 2.39 | Mel Parnell | 128.3 | BOS |
| +042+ | 2.39 | Harry Brecheen | 77.7 | SLN |
| +046+ | 2.19 | Ewell Blackwell | 126.3 | CIN |
| +055+ | 2.05 | Early Wynn | 143.3 | CLE |
| +056+ | 2.04 | Harry Perkowski | 71.7 | CIN |
| +062+ | 1.96 | Larry Jansen | 159 | SFN |
| +065+ | 1.94 | Max Surkont | 141.7 | ATL |
| +066+ | 1.93 | Vic Raschi | 153.3 | NYA |
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