| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 9.46 | 191208070_MIN_CHA |
| Christy Mathewson | SFN | 7.31 | 191208070_PIT_SFN |
| Nap Rucker | LAN | 3.8 | 191208080_SLN_LAN |
| Claude Hendrix | PIT | 3.05 | 191208080_PIT_SFN |
| Ed Walsh | CHA | 2.49 | 191208090_OAK_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| George McConnell | NYA | -2.41 | 191208090_NYA_CLE |
| Earl Hamilton | BAL | -1.99 | 191208080_MIN_BAL |
| Willie Mitchell | CLE | -1.64 | 191208070_BOS_CLE |
| Joe Lake | DET | -1.06 | 191208080_BOS_DET |
| Hippo Vaughn | MIN | -1.06 | 191208080_MIN_BAL |
Based on accumulated WAA for this season up to 1912-08-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12 | Walter Johnson | 254.7 | MIN |
| +002+ | 9.68 | Christy Mathewson | 209.7 | SFN |
| +003+ | 9.15 | Rube Marquard | 213 | SFN |
| +004+ | 8.62 | Nap Rucker | 200.7 | LAN |
| +005+ | 8.33 | Claude Hendrix | 217.7 | PIT |
| +007+ | 7.44 | Marty O'Toole | 199 | PIT |
| +008+ | 7.43 | Slim Sallee | 218 | SLN |
| +010+ | 5.72 | Jimmy Lavender | 172 | CHN |
| +011+ | 5.71 | Rube Benton | 206 | CIN |
| +014+ | 5.56 | Ed Walsh | 278.3 | CHA |
| +015+ | 5.22 | Smoky Joe Wood | 237 | BOS |
| +016+ | 4.72 | Lew Richie | 161.3 | CHN |
| +017+ | 4.67 | Pete Alexander | 202.7 | PHI |
| +020+ | 4.15 | Larry Cheney | 198 | CHN |
| +023+ | 3.85 | George Suggs | 188.7 | CIN |
| +025+ | 3.64 | Jeff Tesreau | 116.7 | SFN |
| +026+ | 3.64 | Vean Gregg | 183 | CLE |
| +029+ | 3.61 | Art Fromme | 181.7 | CIN |
| +033+ | 3.34 | Bert Humphries | 128 | CIN |
| +035+ | 3.27 | Lefty Leifield | 82.7 | TOT |
| +034+ | 3.27 | Howie Camnitz | 185.7 | PIT |
| +036+ | 3.25 | Ad Brennan | 168 | PHI |
| +038+ | 3.03 | Rube Geyer | 110.7 | SLN |
| +041+ | 2.95 | Hooks Wiltse | 109.3 | SFN |
| +040+ | 2.95 | Eppa Rixey | 72.7 | PHI |
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