| Starter | Tm | Tier | Game |
|---|---|---|---|
| Preacher Roe | LAN | 4.98 | 195109270_LAN_ATL |
| Larry Jansen | SFN | 2.85 | 195109260_SFN_PHI |
| Allie Reynolds | NYA | 2.34 | 195109281_BOS_NYA |
| Mel Parnell | BOS | 1.86 | 195109281_BOS_NYA |
| Chet Nichols | ATL | 1.28 | 195109270_LAN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sid Hudson | MIN | -1.95 | 195109260_BOS_MIN |
| Duane Pillette | BAL | -1.84 | 195109282_CHA_BAL |
| Ray Scarborough | BOS | -1.7 | 195109260_BOS_MIN |
| Carl Erskine | LAN | -0.48 | 195109280_LAN_PHI |
| Karl Drews | PHI | -0.24 | 195109280_LAN_PHI |
Based on accumulated WAA for this season up to 1951-09-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +006+ | 7.77 | Robin Roberts | 300.3 | PHI |
| +008+ | 7.31 | Warren Spahn | 302.3 | ATL |
| +010+ | 6.82 | Sal Maglie | 281 | SFN |
| +011+ | 6.68 | Preacher Roe | 256.3 | LAN |
| +012+ | 6.61 | Early Wynn | 274.3 | CLE |
| +015+ | 6.08 | Larry Jansen | 268.7 | SFN |
| +016+ | 5.98 | Saul Rogovin | 216.7 | TOT |
| +017+ | 5.93 | Eddie Lopat | 228.3 | NYA |
| +022+ | 5.47 | Allie Reynolds | 221.3 | NYA |
| +023+ | 5.29 | Mike Garcia | 253.7 | CLE |
| +025+ | 5.14 | Billy Pierce | 240 | CHA |
| +030+ | 4.4 | Vic Raschi | 258.3 | NYA |
| +033+ | 4.25 | Chet Nichols | 156.3 | ATL |
| +034+ | 4.03 | Ralph Branca | 194.7 | LAN |
| +035+ | 4 | Bubba Church | 243 | PHI |
| +038+ | 3.83 | Mel Parnell | 221 | BOS |
| +042+ | 3.58 | Vern Bickford | 162.7 | ATL |
| +044+ | 3.49 | Ken Raffensberger | 248.7 | CIN |
| +049+ | 3.41 | Bob Feller | 249.3 | CLE |
| +050+ | 3.29 | Don Newcombe | 249.3 | LAN |
| +052+ | 3.24 | Al Brazle | 155 | SLN |
| +054+ | 3.23 | Bob Lemon | 263 | CLE |
| +055+ | 3.18 | Steve Gromek | 107 | CLE |
| +056+ | 3.13 | Ewell Blackwell | 227 | CIN |
| +058+ | 2.88 | Sam Zoldak | 128 | OAK |
_