| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | 6.09 | 195109220_ATL_SFN |
| Preacher Roe | LAN | 4.73 | 195109230_PHI_LAN |
| Eddie Lopat | NYA | 4.29 | 195109220_NYA_BOS |
| Sal Maglie | SFN | 3.78 | 195109230_ATL_SFN |
| Mike Garcia | CLE | 3.24 | 195109230_CLE_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Starr | MIN | -5.88 | 195109220_MIN_OAK |
| Dick Fowler | OAK | -2.03 | 195109220_MIN_OAK |
| Joe Hatten | CHN | -1.79 | 195109232_CHN_SLN |
| Howie Pollet | PIT | -1.69 | 195109232_PIT_CIN |
| Tom Poholsky | SLN | -0.88 | 195109231_CHN_SLN |
Based on accumulated WAA for this season up to 1951-09-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 7.74 | Robin Roberts | 293.3 | PHI |
| +008+ | 7.1 | Warren Spahn | 293.3 | ATL |
| +009+ | 6.85 | Early Wynn | 270.3 | CLE |
| +010+ | 6.7 | Preacher Roe | 248.3 | LAN |
| +012+ | 6.58 | Sal Maglie | 278.3 | SFN |
| +016+ | 5.99 | Saul Rogovin | 216.7 | TOT |
| +017+ | 5.94 | Eddie Lopat | 228.3 | NYA |
| +020+ | 5.44 | Larry Jansen | 259.7 | SFN |
| +022+ | 5.18 | Mike Garcia | 252.7 | CLE |
| +025+ | 4.82 | Ralph Branca | 194.7 | LAN |
| +026+ | 4.74 | Billy Pierce | 231 | CHA |
| +027+ | 4.62 | Allie Reynolds | 212.3 | NYA |
| +032+ | 4.18 | Vic Raschi | 249.3 | NYA |
| +033+ | 4.1 | Mel Parnell | 218 | BOS |
| +034+ | 4.03 | Bubba Church | 241 | PHI |
| +037+ | 3.82 | Chet Nichols | 147.3 | ATL |
| +041+ | 3.59 | Vern Bickford | 162.7 | ATL |
| +043+ | 3.53 | Al Brazle | 148.7 | SLN |
| +045+ | 3.43 | Don Newcombe | 240.3 | LAN |
| +047+ | 3.39 | Bob Feller | 249.3 | CLE |
| +052+ | 3.22 | Ewell Blackwell | 227 | CIN |
| +054+ | 3.18 | Steve Gromek | 107 | CLE |
| +055+ | 3.14 | Bob Lemon | 260 | CLE |
| +057+ | 2.89 | Ken Raffensberger | 234.7 | CIN |
| +058+ | 2.89 | Sam Zoldak | 128 | OAK |
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