| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sal Maglie | SFN | 4.94 | 195109131_SFN_SLN |
| Warren Spahn | ATL | 4.86 | 195109132_ATL_SLN |
| Eddie Lopat | NYA | 4.77 | 195109130_DET_NYA |
| Mike Garcia | CLE | 4.11 | 195109111_CLE_OAK |
| Robin Roberts | PHI | 3.99 | 195109110_PHI_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Poholsky | SLN | -1.34 | 195109131_SFN_SLN |
| Joe Hatten | CHN | -1.34 | 195109120_ATL_CHN |
| Sid Hudson | MIN | -1.25 | 195109120_CHA_MIN |
| Alex Kellner | OAK | -1.13 | 195109112_CLE_OAK |
| Bill Wight | BOS | -1.06 | 195109120_DET_BOS |
Based on accumulated WAA for this season up to 1951-09-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +006+ | 7.35 | Warren Spahn | 276.3 | ATL |
| +007+ | 7.17 | Robin Roberts | 273.3 | PHI |
| +012+ | 6.1 | Saul Rogovin | 208.7 | TOT |
| +013+ | 6.01 | Sal Maglie | 260.3 | SFN |
| +014+ | 5.97 | Early Wynn | 252.3 | CLE |
| +015+ | 5.69 | Mike Garcia | 236 | CLE |
| +018+ | 5.47 | Eddie Lopat | 216 | NYA |
| +019+ | 5.42 | Ralph Branca | 183 | LAN |
| +023+ | 4.82 | Preacher Roe | 221.3 | LAN |
| +024+ | 4.61 | Bob Feller | 242.3 | CLE |
| +028+ | 4.25 | Don Newcombe | 228.7 | LAN |
| +029+ | 4.12 | Billy Pierce | 222 | CHA |
| +032+ | 4.03 | Larry Jansen | 241.7 | SFN |
| +034+ | 3.79 | Chet Nichols | 122.7 | ATL |
| +035+ | 3.72 | Steve Gromek | 95 | CLE |
| +036+ | 3.7 | Vern Bickford | 159.7 | ATL |
| +037+ | 3.64 | Mickey McDermott | 160.7 | BOS |
| +038+ | 3.6 | Max Lanier | 142 | SLN |
| +041+ | 3.49 | Al Brazle | 132 | SLN |
| +043+ | 3.4 | Bob Lemon | 247.3 | CLE |
| +044+ | 3.39 | Allie Reynolds | 194.3 | NYA |
| +045+ | 3.38 | Bubba Church | 216 | PHI |
| +051+ | 3.28 | Mel Parnell | 208.7 | BOS |
| +054+ | 3.24 | Sam Zoldak | 122 | OAK |
| +056+ | 3.02 | Ewell Blackwell | 213 | CIN |
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