| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 11.58 | 191207032_NYA_MIN |
| Rube Marquard | SFN | 6.55 | 191207031_LAN_SFN |
| Ed Walsh | CHA | 4.97 | 191207022_CHA_BAL |
| Nap Rucker | LAN | 2.61 | 191207031_LAN_SFN |
| Smoky Joe Wood | BOS | 2.32 | 191207041_BOS_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Quinn | NYA | -4.4 | 191207042_NYA_MIN |
| Earl Hamilton | BAL | -2.72 | 191207021_CHA_BAL |
| Carl Cashion | MIN | -2.46 | 191207041_NYA_MIN |
| Ralph Works | DET | -1.41 | 191207030_CLE_DET |
| Elmer Knetzer | LAN | -1.08 | 191207032_LAN_SFN |
Based on accumulated WAA for this season up to 1912-07-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.56 | Rube Marquard | 160.3 | SFN |
| +002+ | 9 | Walter Johnson | 168.3 | MIN |
| +003+ | 6.62 | Slim Sallee | 157 | SLN |
| +004+ | 5.82 | Marty O'Toole | 134 | PIT |
| +006+ | 5.36 | Larry Cheney | 154.7 | CHN |
| +008+ | 5.24 | Nap Rucker | 130 | LAN |
| +009+ | 5.21 | Christy Mathewson | 128.7 | SFN |
| +010+ | 4.94 | Ed Walsh | 180 | CHA |
| +011+ | 4.76 | George Suggs | 131.3 | CIN |
| +012+ | 4.68 | Claude Hendrix | 137.3 | PIT |
| +015+ | 3.93 | Joe Benz | 123.7 | CHA |
| +016+ | 3.91 | Rube Benton | 144 | CIN |
| +017+ | 3.9 | Jimmy Lavender | 96.3 | CHN |
| +018+ | 3.87 | Charley Hall | 123 | BOS |
| +019+ | 3.6 | Lew Richie | 97.7 | CHN |
| +021+ | 3.43 | Smoky Joe Wood | 173.3 | BOS |
| +022+ | 3.35 | Red Ames | 90.3 | SFN |
| +026+ | 2.89 | Ad Brennan | 120 | PHI |
| +027+ | 2.86 | Hooks Wiltse | 81 | SFN |
| +031+ | 2.57 | Eddie Plank | 124.7 | OAK |
| +039+ | 2.26 | Howie Camnitz | 132 | PIT |
| +042+ | 1.98 | Pete Alexander | 129.7 | PHI |
| +044+ | 1.92 | Mordecai Brown | 67.3 | CHN |
| +049+ | 1.79 | Bert Humphries | 75.7 | CIN |
| +052+ | 1.71 | Rube Geyer | 64.3 | SLN |
_