| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 10.13 | 191208020_MIN_DET |
| Slim Sallee | SLN | 2.93 | 191208010_SLN_PHI |
| Claude Hendrix | PIT | 2.73 | 191208010_PIT_ATL |
| Smoky Joe Wood | BOS | 1.98 | 191208020_BOS_BAL |
| Pete Alexander | PHI | 1.45 | 191208010_SLN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| George McConnell | NYA | -3.02 | 191208010_NYA_CHA |
| Carl Cashion | MIN | -2.06 | 191207310_MIN_DET |
| Joe Lake | DET | -1.87 | 191207310_MIN_DET |
| Earl Hamilton | BAL | -1.55 | 191208020_BOS_BAL |
| Bill Steele | SLN | -1.03 | 191207311_SLN_PHI |
Based on accumulated WAA for this season up to 1912-08-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.4 | Walter Johnson | 245.3 | MIN |
| +002+ | 9.24 | Christy Mathewson | 192.7 | SFN |
| +004+ | 7.74 | Claude Hendrix | 199.3 | PIT |
| +005+ | 7.32 | Nap Rucker | 183.7 | LAN |
| +007+ | 6.88 | Marty O'Toole | 181 | PIT |
| +008+ | 6.83 | Slim Sallee | 199.7 | SLN |
| +010+ | 5.92 | Ed Walsh | 260.3 | CHA |
| +011+ | 5.52 | Rube Benton | 197 | CIN |
| +013+ | 5.35 | Smoky Joe Wood | 226 | BOS |
| +015+ | 4.98 | Pete Alexander | 193.7 | PHI |
| +016+ | 4.91 | Jimmy Lavender | 154 | CHN |
| +017+ | 4.68 | Lew Richie | 149.3 | CHN |
| +019+ | 4.14 | Larry Cheney | 193 | CHN |
| +023+ | 3.48 | Bert Humphries | 127 | CIN |
| +026+ | 3.45 | George Suggs | 179.7 | CIN |
| +030+ | 3.38 | Red Ames | 122 | SFN |
| +029+ | 3.38 | Art Fromme | 165.7 | CIN |
| +031+ | 3.35 | Ad Brennan | 168 | PHI |
| +032+ | 3.34 | Jeff Tesreau | 112.7 | SFN |
| +036+ | 2.99 | Vean Gregg | 162.7 | CLE |
| +037+ | 2.91 | Howie Camnitz | 176.7 | PIT |
| +040+ | 2.82 | Eppa Rixey | 57.7 | PHI |
| +045+ | 2.55 | Rube Geyer | 100.7 | SLN |
| +047+ | 2.47 | Hooks Wiltse | 101.3 | SFN |
| +052+ | 2.33 | Buck O'Brien | 187.7 | BOS |
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