| Starter | Tm | Tier | Game |
|---|---|---|---|
| Christy Mathewson | SFN | 5.5 | 191207170_SFN_PIT |
| Ed Walsh | CHA | 3.48 | 191207171_CHA_BOS |
| Slim Sallee | SLN | 3.22 | 191207170_LAN_SLN |
| Nap Rucker | LAN | 3.18 | 191207170_LAN_SLN |
| Smoky Joe Wood | BOS | 2.85 | 191207172_CHA_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| George McConnell | NYA | -3.03 | 191207170_CLE_NYA |
| Carl Cashion | MIN | -2.58 | 191207192_BAL_MIN |
| Ralph Works | DET | -1.94 | 191207192_DET_OAK |
| Lefty Tyler | ATL | -1.83 | 191207190_ATL_CIN |
| Mack Allison | BAL | -1.18 | 191207171_BAL_MIN |
Based on accumulated WAA for this season up to 1912-07-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.07 | Walter Johnson | 207 | MIN |
| +002+ | 8.88 | Rube Marquard | 182.7 | SFN |
| +003+ | 7.37 | Christy Mathewson | 164.7 | SFN |
| +004+ | 7.07 | Nap Rucker | 159.3 | LAN |
| +005+ | 6.85 | Slim Sallee | 182.7 | SLN |
| +006+ | 6.1 | Marty O'Toole | 162 | PIT |
| +009+ | 5.81 | Ed Walsh | 217.7 | CHA |
| +010+ | 5.74 | Rube Benton | 174.3 | CIN |
| +011+ | 5.7 | Claude Hendrix | 173.3 | PIT |
| +013+ | 5.17 | Jimmy Lavender | 136 | CHN |
| +014+ | 5.09 | George Suggs | 154.3 | CIN |
| +015+ | 4.81 | Smoky Joe Wood | 203.3 | BOS |
| +017+ | 4.35 | Larry Cheney | 181 | CHN |
| +018+ | 4.27 | Lew Richie | 126.3 | CHN |
| +021+ | 3.77 | Pete Alexander | 157.7 | PHI |
| +022+ | 3.46 | Bert Humphries | 108.7 | CIN |
| +031+ | 2.77 | Charley Hall | 127.3 | BOS |
| +034+ | 2.74 | Hooks Wiltse | 90 | SFN |
| +033+ | 2.74 | Eppa Rixey | 39 | PHI |
| +038+ | 2.6 | Joe Benz | 145.7 | CHA |
| +037+ | 2.6 | Hub Perdue | 139.3 | ATL |
| +041+ | 2.43 | Art Fromme | 139.7 | CIN |
| +043+ | 2.27 | Red Ames | 107 | SFN |
| +045+ | 2.19 | Rube Geyer | 85 | SLN |
| +046+ | 2.18 | Jean Dubuc | 147.7 | DET |
_