| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nap Rucker | LAN | 4.3 | 191208260_LAN_CHN |
| Rube Marquard | SFN | 3.39 | 191208260_SFN_CIN |
| Claude Hendrix | PIT | 2.88 | 191208261_ATL_PIT |
| Slim Sallee | SLN | 2.51 | 191208240_LAN_SLN |
| Smoky Joe Wood | BOS | 2.44 | 191208240_CLE_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Russ Ford | NYA | -2.99 | 191208240_CHA_NYA |
| King Cole | PIT | -1.87 | 191208262_ATL_PIT |
| Mack Allison | BAL | -1.82 | 191208261_BAL_MIN |
| Lefty Tyler | ATL | -1.13 | 191208240_ATL_CHN |
| Boardwalk Brown | OAK | -0.93 | 191208260_DET_OAK |
Based on accumulated WAA for this season up to 1912-08-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 14.14 | Walter Johnson | 295.7 | MIN |
| +002+ | 10.11 | Christy Mathewson | 237 | SFN |
| +003+ | 9.5 | Nap Rucker | 229.7 | LAN |
| +005+ | 8.54 | Rube Marquard | 242.7 | SFN |
| +006+ | 8.1 | Claude Hendrix | 247.7 | PIT |
| +007+ | 7.74 | Slim Sallee | 246.7 | SLN |
| +008+ | 6.93 | Smoky Joe Wood | 276 | BOS |
| +009+ | 6.73 | Rube Benton | 237.7 | CIN |
| +011+ | 6.58 | Ed Walsh | 315.3 | CHA |
| +012+ | 6.39 | Marty O'Toole | 222 | PIT |
| +015+ | 6.25 | Pete Alexander | 246 | PHI |
| +017+ | 5.81 | George Suggs | 223.3 | CIN |
| +018+ | 5.77 | Art Fromme | 214 | CIN |
| +019+ | 5.49 | Lew Richie | 194.7 | CHN |
| +020+ | 5.1 | Jimmy Lavender | 197.3 | CHN |
| +021+ | 4.97 | Howie Camnitz | 215.7 | PIT |
| +022+ | 4.8 | Jeff Tesreau | 150.7 | SFN |
| +028+ | 4.25 | Larry Cheney | 220 | CHN |
| +029+ | 3.94 | Hank Robinson | 133 | PIT |
| +030+ | 3.81 | Hooks Wiltse | 124.3 | SFN |
| +032+ | 3.8 | Eddie Plank | 200.7 | OAK |
| +031+ | 3.8 | Red Ames | 137.7 | SFN |
| +037+ | 3.58 | Eppa Rixey | 106.7 | PHI |
| +044+ | 3.04 | Bert Humphries | 158 | CIN |
| +045+ | 3.01 | Babe Adams | 127.3 | PIT |
_