| Starter | Tm | Tier | Game |
|---|---|---|---|
| Robin Roberts | PHI | 6.61 | 195109210_PHI_LAN |
| 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 |
| 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 1951-09-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 7.76 | Robin Roberts | 293.3 | PHI |
| +008+ | 7.1 | Warren Spahn | 293.3 | ATL |
| +009+ | 6.86 | Early Wynn | 270.3 | CLE |
| +010+ | 6.72 | Preacher Roe | 248.3 | LAN |
| +012+ | 6.59 | Sal Maglie | 278.3 | SFN |
| +016+ | 6 | Saul Rogovin | 216.7 | TOT |
| +017+ | 5.95 | Eddie Lopat | 228.3 | NYA |
| +019+ | 5.46 | Larry Jansen | 259.7 | SFN |
| +021+ | 5.19 | Mike Garcia | 252.7 | CLE |
| +025+ | 4.83 | Ralph Branca | 194.7 | LAN |
| +026+ | 4.75 | Billy Pierce | 231 | CHA |
| +027+ | 4.63 | Allie Reynolds | 212.3 | NYA |
| +032+ | 4.19 | Vic Raschi | 249.3 | NYA |
| +033+ | 4.11 | Mel Parnell | 218 | BOS |
| +034+ | 4.04 | Bubba Church | 241 | PHI |
| +040+ | 3.59 | Vern Bickford | 162.7 | ATL |
| +042+ | 3.54 | Al Brazle | 148.7 | SLN |
| +044+ | 3.45 | Don Newcombe | 240.3 | LAN |
| +045+ | 3.43 | Chet Nichols | 138.7 | ATL |
| +046+ | 3.41 | Bob Feller | 249.3 | CLE |
| +052+ | 3.23 | Ewell Blackwell | 227 | CIN |
| +053+ | 3.18 | Steve Gromek | 107 | CLE |
| +055+ | 3.15 | Bob Lemon | 260 | CLE |
| +057+ | 2.9 | Ken Raffensberger | 234.7 | CIN |
| +058+ | 2.89 | Sam Zoldak | 128 | OAK |
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