| Starter | Tm | Tier | Game |
|---|---|---|---|
| Christy Mathewson | SFN | 6.67 | 191206221_SFN_ATL |
| Slim Sallee | SLN | 3.79 | 191206230_SLN_CHN |
| Chief Bender | OAK | 2.53 | 191206240_NYA_OAK |
| Larry Cheney | CHN | 1.55 | 191206220_CHN_SLN |
| George Suggs | CIN | 1.13 | 191206220_CIN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Harmon | SLN | -1.33 | 191206220_CHN_SLN |
| Barney Pelty | MIN | -1.24 | 191206240_BOS_MIN |
| Jack Warhop | NYA | -0.99 | 191206222_BOS_NYA |
| Ed Reulbach | CHN | -0.77 | 191206240_CHN_CIN |
| Ralph Works | DET | -0.69 | 191206230_DET_BAL |
Based on accumulated WAA for this season up to 1912-06-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.89 | Rube Marquard | 133.3 | SFN |
| +003+ | 6.05 | Slim Sallee | 130 | SLN |
| +004+ | 5.35 | Larry Cheney | 141.7 | CHN |
| +005+ | 4.92 | Christy Mathewson | 115.7 | SFN |
| +006+ | 4.89 | Ed Walsh | 159.7 | CHA |
| +007+ | 4.67 | Rube Benton | 127 | CIN |
| +010+ | 4.24 | Marty O'Toole | 113 | PIT |
| +013+ | 3.63 | George Suggs | 105.7 | CIN |
| +014+ | 3.37 | Claude Hendrix | 112.7 | PIT |
| +016+ | 3.26 | Nap Rucker | 101 | LAN |
| +017+ | 3.13 | Joe Benz | 103.7 | CHA |
| +018+ | 3.08 | Hub Perdue | 110.3 | ATL |
| +019+ | 2.98 | Hooks Wiltse | 61 | SFN |
| +020+ | 2.97 | Ad Brennan | 98 | PHI |
| +021+ | 2.85 | Lew Richie | 72.7 | CHN |
| +022+ | 2.75 | Charley Hall | 96 | BOS |
| +026+ | 2.51 | Vean Gregg | 96.3 | CLE |
| +027+ | 2.41 | Chief Bender | 85.3 | OAK |
| +028+ | 2.34 | Cliff Curtis | 46 | PHI |
| +030+ | 2.25 | Eddie Plank | 102.7 | OAK |
| +036+ | 1.9 | Hugh Bedient | 76.7 | BOS |
| +043+ | 1.72 | Howie Camnitz | 106.7 | PIT |
| +044+ | 1.72 | Smoky Joe Wood | 149.3 | BOS |
| +045+ | 1.69 | Walt Dickson | 63 | ATL |
| +049+ | 1.47 | Jeff Tesreau | 56.3 | SFN |
_