| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 9.96 | 191207252_DET_MIN |
| Christy Mathewson | SFN | 6.49 | 191207260_CHN_SFN |
| Ed Walsh | CHA | 3.86 | 191207240_CHA_NYA |
| Marty O'Toole | PIT | 1.86 | 191207260_PIT_PHI |
| Lew Richie | CHN | 1.55 | 191207260_CHN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| George McConnell | NYA | -2.7 | 191207240_CHA_NYA |
| Earl Hamilton | BAL | -1.2 | 191207252_BAL_OAK |
| Tom Hughes | MIN | -0.28 | 191207251_DET_MIN |
| Boardwalk Brown | OAK | -0.19 | 191207252_BAL_OAK |
| Bob Harmon | SLN | -0.15 | 191207240_PHI_SLN |
Based on accumulated WAA for this season up to 1912-07-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.01 | Walter Johnson | 227.3 | MIN |
| +002+ | 9.48 | Rube Marquard | 191.7 | SFN |
| +003+ | 8.92 | Christy Mathewson | 183.7 | SFN |
| +006+ | 6.71 | Slim Sallee | 183.7 | SLN |
| +007+ | 6.44 | Claude Hendrix | 182.3 | PIT |
| +008+ | 6.19 | Ed Walsh | 237 | CHA |
| +009+ | 6.03 | Marty O'Toole | 169 | PIT |
| +011+ | 5.5 | George Suggs | 163.3 | CIN |
| +013+ | 5.12 | Rube Benton | 181.3 | CIN |
| +015+ | 5 | Smoky Joe Wood | 212.3 | BOS |
| +017+ | 4.71 | Lew Richie | 142.3 | CHN |
| +019+ | 4.21 | Larry Cheney | 193 | CHN |
| +020+ | 4.03 | Pete Alexander | 175.7 | PHI |
| +023+ | 3.42 | Bert Humphries | 110.7 | CIN |
| +028+ | 3.11 | Howie Camnitz | 167 | PIT |
| +029+ | 3.07 | Vean Gregg | 153.7 | CLE |
| +035+ | 2.88 | Art Fromme | 155.7 | CIN |
| +038+ | 2.62 | Hub Perdue | 139.3 | ATL |
| +040+ | 2.5 | Charley Hall | 142.3 | BOS |
| +042+ | 2.47 | Hank Robinson | 84.3 | PIT |
| +044+ | 2.44 | Joe Benz | 161.7 | CHA |
| +045+ | 2.38 | Ad Brennan | 150 | PHI |
| +047+ | 2.32 | Eppa Rixey | 47.7 | PHI |
| +049+ | 2.31 | Red Ames | 110 | SFN |
| +048+ | 2.31 | Ray Collins | 94.3 | BOS |
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