| Starter | Tm | Tier | Game |
|---|---|---|---|
| Christy Mathewson | SFN | 6.86 | 191207300_CHN_SFN |
| Ed Walsh | CHA | 3.45 | 191207300_BOS_CHA |
| Slim Sallee | SLN | 2.93 | 191208010_SLN_PHI |
| Claude Hendrix | PIT | 2.73 | 191208010_PIT_ATL |
| 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 |
| Mack Allison | BAL | -1.31 | 191208010_BOS_BAL |
| Bill Steele | SLN | -1.03 | 191207311_SLN_PHI |
Based on accumulated WAA for this season up to 1912-08-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.63 | Walter Johnson | 236.3 | MIN |
| +002+ | 9.31 | Christy Mathewson | 192.7 | SFN |
| +003+ | 9.11 | Rube Marquard | 201.7 | SFN |
| +004+ | 7.8 | Claude Hendrix | 199.3 | PIT |
| +005+ | 7.38 | Nap Rucker | 183.7 | LAN |
| +007+ | 6.93 | Marty O'Toole | 181 | PIT |
| +008+ | 6.89 | Slim Sallee | 199.7 | SLN |
| +010+ | 5.8 | Ed Walsh | 256 | CHA |
| +011+ | 5.43 | Rube Benton | 189 | CIN |
| +014+ | 5.04 | Pete Alexander | 193.7 | PHI |
| +015+ | 4.73 | Lew Richie | 149.3 | CHN |
| +016+ | 4.56 | Smoky Joe Wood | 217 | BOS |
| +018+ | 4.19 | Larry Cheney | 193 | CHN |
| +020+ | 4.11 | Jimmy Lavender | 145 | CHN |
| +023+ | 3.51 | Bert Humphries | 127 | CIN |
| +024+ | 3.49 | George Suggs | 179.7 | CIN |
| +027+ | 3.42 | Red Ames | 122 | SFN |
| +028+ | 3.42 | Art Fromme | 165.7 | CIN |
| +029+ | 3.4 | Ad Brennan | 168 | PHI |
| +035+ | 3.05 | Vean Gregg | 162.7 | CLE |
| +036+ | 2.96 | Howie Camnitz | 176.7 | PIT |
| +038+ | 2.84 | Eppa Rixey | 57.7 | PHI |
| +043+ | 2.58 | Rube Geyer | 100.7 | SLN |
| +044+ | 2.52 | Jeff Tesreau | 103.7 | SFN |
| +045+ | 2.5 | Hooks Wiltse | 101.3 | SFN |
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