| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 9.32 | 191207220_DET_MIN |
| Christy Mathewson | SFN | 5.63 | 191207220_SFN_CIN |
| Ed Walsh | CHA | 3.86 | 191207240_CHA_NYA |
| Smoky Joe Wood | BOS | 2.41 | 191207230_CLE_BOS |
| Claude Hendrix | PIT | 1.64 | 191207230_ATL_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ralph Works | DET | -3.45 | 191207220_DET_MIN |
| George McConnell | NYA | -2.7 | 191207240_CHA_NYA |
| Gene Dale | SLN | -1.67 | 191207220_PHI_SLN |
| Hippo Vaughn | MIN | -1.16 | 191207230_DET_MIN |
| Mack Allison | BAL | -0.7 | 191207220_BAL_OAK |
Based on accumulated WAA for this season up to 1912-07-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.22 | Walter Johnson | 218.3 | MIN |
| +002+ | 9.49 | Rube Marquard | 191.7 | SFN |
| +003+ | 8.07 | Christy Mathewson | 174.7 | SFN |
| +005+ | 6.72 | Slim Sallee | 183.7 | SLN |
| +006+ | 6.65 | Nap Rucker | 167.3 | LAN |
| +007+ | 6.54 | Claude Hendrix | 182.3 | PIT |
| +008+ | 6.13 | Ed Walsh | 236 | CHA |
| +009+ | 6.08 | Marty O'Toole | 162 | PIT |
| +011+ | 5.66 | Rube Benton | 178.3 | CIN |
| +012+ | 5.49 | George Suggs | 163.3 | CIN |
| +015+ | 5.01 | Smoky Joe Wood | 212.3 | BOS |
| +017+ | 4.48 | Lew Richie | 135.3 | CHN |
| +019+ | 4.21 | Larry Cheney | 193 | CHN |
| +021+ | 4.04 | Pete Alexander | 175.7 | PHI |
| +025+ | 3.41 | Bert Humphries | 110.7 | CIN |
| +032+ | 2.87 | Art Fromme | 155.7 | CIN |
| +035+ | 2.63 | Hub Perdue | 139.3 | ATL |
| +036+ | 2.63 | Howie Camnitz | 161 | PIT |
| +037+ | 2.51 | Charley Hall | 142.3 | BOS |
| +039+ | 2.46 | Joe Benz | 152.7 | CHA |
| +042+ | 2.39 | Ad Brennan | 150 | PHI |
| +041+ | 2.39 | Hank Robinson | 83 | PIT |
| +044+ | 2.32 | Eppa Rixey | 47.7 | PHI |
| +045+ | 2.32 | Red Ames | 110 | SFN |
| +046+ | 2.3 | Jeff Tesreau | 96.7 | SFN |
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