| Starter | Tm | Tier | Game |
|---|---|---|---|
| Russ Ford | NYA | -2.68 | 191208142_DET_NYA |
| Rube Peters | CHA | -1.99 | 191208130_CHA_MIN |
| Carl Cashion | MIN | -1.91 | 191208150_CHA_MIN |
| Joe Lake | DET | -1.21 | 191208130_DET_NYA |
| Lefty Tyler | ATL | -1.06 | 191208150_ATL_SLN |
Based on accumulated WAA for this season up to 1912-08-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.55 | Walter Johnson | 266.3 | MIN |
| +002+ | 9.82 | Christy Mathewson | 216.7 | SFN |
| +003+ | 8.92 | Claude Hendrix | 227.7 | PIT |
| +005+ | 8.44 | Rube Marquard | 217.7 | SFN |
| +006+ | 8.3 | Nap Rucker | 209.7 | LAN |
| +007+ | 7.75 | Slim Sallee | 227 | SLN |
| +008+ | 7.6 | Marty O'Toole | 213.3 | PIT |
| +009+ | 6.51 | Smoky Joe Wood | 254 | BOS |
| +011+ | 6.11 | Rube Benton | 216 | CIN |
| +012+ | 5.96 | Pete Alexander | 222 | PHI |
| +014+ | 5.79 | Ed Walsh | 290 | CHA |
| +016+ | 5.07 | Jimmy Lavender | 175 | CHN |
| +018+ | 4.82 | Lew Richie | 174.7 | CHN |
| +019+ | 4.63 | George Suggs | 207 | CIN |
| +021+ | 4.35 | Art Fromme | 190.7 | CIN |
| +023+ | 4.22 | Jeff Tesreau | 125.7 | SFN |
| +028+ | 3.81 | Larry Cheney | 200 | CHN |
| +029+ | 3.67 | Howie Camnitz | 195.7 | PIT |
| +032+ | 3.53 | Red Ames | 131.7 | SFN |
| +033+ | 3.5 | Eddie Plank | 182.7 | OAK |
| +035+ | 3.22 | Lefty Leifield | 82.7 | TOT |
| +038+ | 3.17 | Hank Robinson | 114.7 | PIT |
| +042+ | 2.92 | Jean Dubuc | 211.7 | DET |
| +043+ | 2.91 | Rube Geyer | 116.7 | SLN |
| +044+ | 2.9 | Hooks Wiltse | 109.3 | SFN |
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