| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 10.96 | 191208280_BAL_MIN |
| Slim Sallee | SLN | 2.61 | 191208280_SLN_CHN |
| Smoky Joe Wood | BOS | 2.06 | 191208282_CHA_BOS |
| Rube Benton | CIN | 1.74 | 191208300_CIN_PIT |
| Marty O'Toole | PIT | 1.56 | 191208290_CIN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Fisher | NYA | -3.19 | 191208290_NYA_MIN |
| George Kahler | CLE | -1.16 | 191208282_CLE_NYA |
| Earl Hamilton | BAL | -0.95 | 191208300_BAL_DET |
| Ed Willett | DET | -0.92 | 191208280_DET_OAK |
| Bill Steele | SLN | -0.74 | 191208300_SLN_CHN |
Based on accumulated WAA for this season up to 1912-08-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 14.3 | Walter Johnson | 304.7 | MIN |
| +002+ | 10.33 | Christy Mathewson | 244 | SFN |
| +003+ | 9.1 | Nap Rucker | 230 | LAN |
| +005+ | 8.53 | Rube Marquard | 242.7 | SFN |
| +006+ | 8.02 | Claude Hendrix | 247.7 | PIT |
| +007+ | 7.79 | Slim Sallee | 253.7 | SLN |
| +009+ | 7.44 | Smoky Joe Wood | 285 | BOS |
| +010+ | 7.08 | Rube Benton | 244.7 | CIN |
| +011+ | 6.75 | Art Fromme | 227.7 | CIN |
| +012+ | 6.61 | Ed Walsh | 321 | CHA |
| +016+ | 6.14 | George Suggs | 232.3 | CIN |
| +017+ | 6.07 | Pete Alexander | 247 | PHI |
| +018+ | 5.99 | Marty O'Toole | 230 | PIT |
| +019+ | 5.66 | Larry Cheney | 238 | CHN |
| +020+ | 5.51 | Lew Richie | 199.7 | CHN |
| +021+ | 5.28 | Jimmy Lavender | 206.3 | CHN |
| +022+ | 5.09 | Howie Camnitz | 224.7 | PIT |
| +023+ | 5 | Jeff Tesreau | 159.7 | SFN |
| +030+ | 4.19 | Eppa Rixey | 115.7 | PHI |
| +031+ | 4.13 | Red Ames | 141.3 | SFN |
| +036+ | 3.48 | Babe Adams | 135.3 | PIT |
| +040+ | 3.34 | Ray Collins | 146.3 | BOS |
| +041+ | 3.3 | Hooks Wiltse | 125.7 | SFN |
| +046+ | 3.12 | Eddie Plank | 204.7 | OAK |
| +048+ | 2.98 | Bert Humphries | 158 | CIN |
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