| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 9.18 | 191207281_MIN_CLE |
| Rube Marquard | SFN | 5.74 | 191207270_CHN_SFN |
| Ed Walsh | CHA | 3.98 | 191207270_BOS_CHA |
| Nap Rucker | LAN | 3.21 | 191207290_CIN_LAN |
| Slim Sallee | SLN | 2.72 | 191207271_SLN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ralph Works | DET | -3.84 | 191207290_OAK_DET |
| George McConnell | NYA | -2.69 | 191207281_NYA_BAL |
| Carl Cashion | MIN | -1.93 | 191207271_MIN_CLE |
| Mack Allison | BAL | -1.48 | 191207272_NYA_BAL |
| Lefty Tyler | ATL | -1.22 | 191207272_SLN_ATL |
Based on accumulated WAA for this season up to 1912-07-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.68 | Walter Johnson | 236.3 | MIN |
| +002+ | 8.94 | Christy Mathewson | 183.7 | SFN |
| +003+ | 8.9 | Rube Marquard | 198.7 | SFN |
| +004+ | 7.51 | Nap Rucker | 183.7 | LAN |
| +005+ | 7.26 | Claude Hendrix | 190.3 | PIT |
| +007+ | 7.09 | Slim Sallee | 191.7 | SLN |
| +008+ | 6.09 | Marty O'Toole | 169 | PIT |
| +009+ | 6.08 | Ed Walsh | 247 | CHA |
| +012+ | 5.01 | Rube Benton | 184 | CIN |
| +014+ | 4.79 | Jimmy Lavender | 143 | CHN |
| +015+ | 4.76 | Lew Richie | 149.3 | CHN |
| +016+ | 4.7 | Pete Alexander | 184.7 | PHI |
| +017+ | 4.6 | Smoky Joe Wood | 217 | BOS |
| +019+ | 4.31 | George Suggs | 165.7 | CIN |
| +020+ | 4.23 | Larry Cheney | 193 | CHN |
| +022+ | 3.8 | Bert Humphries | 118.7 | CIN |
| +029+ | 3.22 | Art Fromme | 158.7 | CIN |
| +032+ | 3.1 | Vean Gregg | 162.7 | CLE |
| +033+ | 3.08 | Howie Camnitz | 175 | PIT |
| +038+ | 2.63 | Ad Brennan | 159 | PHI |
| +039+ | 2.61 | Red Ames | 113 | SFN |
| +040+ | 2.55 | Jeff Tesreau | 103.7 | SFN |
| +042+ | 2.5 | Hank Robinson | 84.3 | PIT |
| +043+ | 2.49 | Charley Hall | 142.3 | BOS |
| +047+ | 2.32 | Eppa Rixey | 47.7 | PHI |
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