| Starter | Tm | Tier | Game |
|---|---|---|---|
| Robin Roberts | PHI | 4.94 | 195109070_PHI_LAN |
| Mike Garcia | CLE | 4.78 | 195109071_CLE_BAL |
| Eddie Lopat | NYA | 3.99 | 195109080_MIN_NYA |
| Preacher Roe | LAN | 3.36 | 195109070_PHI_LAN |
| Larry Jansen | SFN | 1.24 | 195109070_SFN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Sanford | BAL | -2.52 | 195109080_CLE_BAL |
| Virgil Trucks | DET | -1.56 | 195109072_DET_CHA |
| Alex Kellner | OAK | -1.45 | 195109072_BOS_OAK |
| Sid Hudson | MIN | -1.45 | 195109070_MIN_NYA |
| Bill Wight | BOS | -1.01 | 195109071_BOS_OAK |
Based on accumulated WAA for this season up to 1951-09-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +007+ | 6.54 | Warren Spahn | 258.3 | ATL |
| +008+ | 6.41 | Mike Garcia | 229.7 | CLE |
| +009+ | 6.36 | Eddie Lopat | 212 | NYA |
| +010+ | 6.33 | Robin Roberts | 264.3 | PHI |
| +011+ | 6.32 | Sal Maglie | 250 | SFN |
| +014+ | 5.79 | Early Wynn | 243 | CLE |
| +015+ | 5.71 | Saul Rogovin | 201.7 | TOT |
| +019+ | 5.22 | Ralph Branca | 176 | LAN |
| +021+ | 4.86 | Preacher Roe | 221.3 | LAN |
| +022+ | 4.85 | Bob Feller | 235.3 | CLE |
| +023+ | 4.83 | Don Newcombe | 227.7 | LAN |
| +026+ | 4.34 | Allie Reynolds | 191 | NYA |
| +029+ | 4.02 | Larry Jansen | 234.7 | SFN |
| +031+ | 3.92 | Mickey McDermott | 154.3 | BOS |
| +033+ | 3.81 | Chet Nichols | 122.7 | ATL |
| +035+ | 3.73 | Vern Bickford | 159.7 | ATL |
| +038+ | 3.56 | Steve Gromek | 93 | CLE |
| +040+ | 3.45 | Mel Parnell | 201 | BOS |
| +043+ | 3.4 | Bubba Church | 216 | PHI |
| +045+ | 3.35 | Billy Pierce | 213 | CHA |
| +049+ | 3.13 | Sam Zoldak | 116 | OAK |
| +053+ | 2.91 | Max Lanier | 132 | SLN |
| +055+ | 2.89 | Al Brazle | 123 | SLN |
| +056+ | 2.87 | Connie Marrero | 180.3 | MIN |
| +062+ | 2.71 | Harry Brecheen | 138.7 | SLN |
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