| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 10.59 | 191207160_CHA_MIN |
| 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 |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| George McConnell | NYA | -3.03 | 191207170_CLE_NYA |
| Earl Hamilton | BAL | -1.9 | 191207162_BAL_NYA |
| Joe Lake | DET | -1.54 | 191207172_DET_OAK |
| King Cole | PIT | -1.42 | 191207160_LAN_PIT |
| Hippo Vaughn | MIN | -1.03 | 191207172_BAL_MIN |
Based on accumulated WAA for this season up to 1912-07-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.07 | Walter Johnson | 207 | MIN |
| +002+ | 8.63 | Rube Marquard | 173.7 | SFN |
| +003+ | 7.35 | Christy Mathewson | 164.7 | SFN |
| +004+ | 7.05 | Nap Rucker | 159.3 | LAN |
| +005+ | 6.65 | Marty O'Toole | 159 | PIT |
| +006+ | 6.49 | Slim Sallee | 176.7 | SLN |
| +007+ | 5.84 | Ed Walsh | 217.7 | CHA |
| +008+ | 5.74 | Rube Benton | 174.3 | CIN |
| +009+ | 5.68 | Claude Hendrix | 164.3 | PIT |
| +012+ | 5.31 | Jimmy Lavender | 133 | CHN |
| +014+ | 5.09 | George Suggs | 154.3 | CIN |
| +015+ | 4.88 | Smoky Joe Wood | 203.3 | BOS |
| +016+ | 4.34 | Larry Cheney | 181 | CHN |
| +019+ | 3.91 | Lew Richie | 120.3 | CHN |
| +020+ | 3.77 | Pete Alexander | 157.7 | PHI |
| +022+ | 3.43 | Joe Benz | 138.7 | CHA |
| +027+ | 2.92 | Red Ames | 103 | SFN |
| +030+ | 2.81 | Charley Hall | 127.3 | BOS |
| +032+ | 2.73 | Hooks Wiltse | 90 | SFN |
| +037+ | 2.59 | Bert Humphries | 99.7 | CIN |
| +038+ | 2.58 | Hub Perdue | 139.3 | ATL |
| +039+ | 2.43 | Art Fromme | 139.7 | CIN |
| +043+ | 2.19 | Rube Geyer | 85 | SLN |
| +044+ | 2.16 | Jean Dubuc | 147.7 | DET |
| +046+ | 2.13 | Vean Gregg | 135.3 | CLE |
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