| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 9.76 | 191208110_MIN_BAL |
| Nap Rucker | LAN | 3.97 | 191208120_PIT_LAN |
| Ed Walsh | CHA | 2.13 | 191208120_CHA_CLE |
| Jimmy Lavender | CHN | 1.21 | 191208120_CHN_ATL |
| Chief Bender | OAK | 0.54 | 191208111_OAK_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Fisher | NYA | -2.04 | 191208130_DET_NYA |
| Rube Peters | CHA | -1.99 | 191208130_CHA_MIN |
| Earl Hamilton | BAL | -1.43 | 191208110_MIN_BAL |
| Joe Lake | DET | -1.21 | 191208130_DET_NYA |
| George Kahler | CLE | -0.84 | 191208120_CHA_CLE |
Based on accumulated WAA for this season up to 1912-08-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.49 | Walter Johnson | 264.7 | MIN |
| +002+ | 9.85 | Christy Mathewson | 216.7 | SFN |
| +003+ | 9.09 | Rube Marquard | 213 | SFN |
| +004+ | 8.36 | Nap Rucker | 209.7 | LAN |
| +005+ | 8.3 | Claude Hendrix | 217.7 | PIT |
| +007+ | 7.53 | Slim Sallee | 224 | SLN |
| +008+ | 6.86 | Marty O'Toole | 204.3 | PIT |
| +010+ | 5.96 | Ed Walsh | 288.7 | CHA |
| +011+ | 5.8 | Smoky Joe Wood | 246 | BOS |
| +013+ | 5.67 | Rube Benton | 206 | CIN |
| +015+ | 5.31 | Pete Alexander | 212.3 | PHI |
| +016+ | 5.11 | Jimmy Lavender | 175 | CHN |
| +018+ | 4.42 | Art Fromme | 190.7 | CIN |
| +020+ | 4.24 | Lew Richie | 165.7 | CHN |
| +019+ | 4.24 | Jeff Tesreau | 125.7 | SFN |
| +026+ | 3.86 | George Suggs | 198 | CIN |
| +025+ | 3.86 | Larry Cheney | 200 | CHN |
| +029+ | 3.58 | Vean Gregg | 183 | CLE |
| +030+ | 3.55 | Red Ames | 131.7 | SFN |
| +032+ | 3.51 | Eppa Rixey | 81 | PHI |
| +033+ | 3.26 | Jean Dubuc | 201.7 | DET |
| +037+ | 3.25 | Howie Camnitz | 185.7 | PIT |
| +038+ | 3.25 | Lefty Leifield | 82.7 | TOT |
| +039+ | 3.22 | Hank Robinson | 114.7 | PIT |
| +043+ | 3.01 | Rube Geyer | 110.7 | SLN |
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