| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | 5.37 | 195109051_SFN_ATL |
| Robin Roberts | PHI | 4.94 | 195109070_PHI_LAN |
| Mike Garcia | CLE | 4.78 | 195109071_CLE_BAL |
| Sal Maglie | SFN | 3.46 | 195109052_SFN_ATL |
| Preacher Roe | LAN | 3.36 | 195109070_PHI_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Werle | PIT | -7.47 | 195109050_CIN_PIT |
| Virgil Trucks | DET | -1.56 | 195109072_DET_CHA |
| Alex Kellner | OAK | -1.45 | 195109072_BOS_OAK |
| Sid Hudson | MIN | -1.45 | 195109070_MIN_NYA |
| Joe Hatten | CHN | -1.39 | 195109052_SLN_CHN |
Based on accumulated WAA for this season up to 1951-09-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +007+ | 6.58 | Warren Spahn | 258.3 | ATL |
| +008+ | 6.45 | Mike Garcia | 229.7 | CLE |
| +009+ | 6.35 | Robin Roberts | 264.3 | PHI |
| +010+ | 6.34 | Sal Maglie | 250 | SFN |
| +013+ | 5.83 | Early Wynn | 243 | CLE |
| +014+ | 5.74 | Saul Rogovin | 201.7 | TOT |
| +016+ | 5.53 | Eddie Lopat | 203 | NYA |
| +019+ | 5.24 | Ralph Branca | 176 | LAN |
| +021+ | 4.89 | Preacher Roe | 221.3 | LAN |
| +022+ | 4.89 | Bob Feller | 235.3 | CLE |
| +025+ | 4.37 | Allie Reynolds | 191 | NYA |
| +028+ | 4.04 | Larry Jansen | 234.7 | SFN |
| +029+ | 4.01 | Don Newcombe | 218.7 | LAN |
| +032+ | 3.94 | Mickey McDermott | 154.3 | BOS |
| +034+ | 3.76 | Vern Bickford | 159.7 | ATL |
| +036+ | 3.59 | Bubba Church | 209 | PHI |
| +037+ | 3.57 | Steve Gromek | 93 | CLE |
| +040+ | 3.38 | Billy Pierce | 213 | CHA |
| +046+ | 3.15 | Sam Zoldak | 116 | OAK |
| +050+ | 2.98 | Chet Nichols | 113.7 | ATL |
| +052+ | 2.93 | Max Lanier | 132 | SLN |
| +053+ | 2.89 | Connie Marrero | 180.3 | MIN |
| +055+ | 2.85 | Mel Parnell | 192 | BOS |
| +061+ | 2.75 | Bob Lemon | 232.7 | CLE |
| +062+ | 2.73 | Harry Brecheen | 138.7 | SLN |
_