| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 9.96 | 191207252_DET_MIN |
| Rube Marquard | SFN | 4.79 | 191207230_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 |
|---|---|---|---|
| George McConnell | NYA | -2.7 | 191207240_CHA_NYA |
| Earl Hamilton | BAL | -1.2 | 191207252_BAL_OAK |
| Hippo Vaughn | MIN | -1.16 | 191207230_DET_MIN |
| Otto Hess | ATL | -0.69 | 191207230_ATL_PIT |
| Ed Willett | DET | -0.4 | 191207230_DET_MIN |
Based on accumulated WAA for this season up to 1912-07-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.03 | Walter Johnson | 227.3 | MIN |
| +002+ | 9.49 | Rube Marquard | 191.7 | SFN |
| +003+ | 8.08 | Christy Mathewson | 174.7 | SFN |
| +006+ | 6.72 | Slim Sallee | 183.7 | SLN |
| +007+ | 6.43 | Claude Hendrix | 182.3 | PIT |
| +008+ | 6.21 | Ed Walsh | 237 | CHA |
| +009+ | 5.99 | Marty O'Toole | 162 | PIT |
| +011+ | 5.67 | Rube Benton | 178.3 | CIN |
| +012+ | 5.5 | George Suggs | 163.3 | CIN |
| +015+ | 5.01 | Smoky Joe Wood | 212.3 | BOS |
| +017+ | 4.49 | Lew Richie | 135.3 | CHN |
| +019+ | 4.22 | Larry Cheney | 193 | CHN |
| +021+ | 4.04 | Pete Alexander | 175.7 | PHI |
| +023+ | 3.41 | Bert Humphries | 110.7 | CIN |
| +028+ | 3.1 | Howie Camnitz | 167 | PIT |
| +029+ | 3.08 | Vean Gregg | 153.7 | CLE |
| +035+ | 2.87 | Art Fromme | 155.7 | CIN |
| +038+ | 2.63 | Hub Perdue | 139.3 | ATL |
| +040+ | 2.51 | Charley Hall | 142.3 | BOS |
| +042+ | 2.47 | Hank Robinson | 84.3 | PIT |
| +043+ | 2.45 | Joe Benz | 161.7 | CHA |
| +044+ | 2.39 | Ad Brennan | 150 | PHI |
| +048+ | 2.32 | Red Ames | 110 | SFN |
| +047+ | 2.32 | Ray Collins | 94.3 | BOS |
| +046+ | 2.32 | Eppa Rixey | 47.7 | PHI |
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