| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 9.76 | 191208110_MIN_BAL |
| Ed Walsh | CHA | 2.49 | 191208090_OAK_CHA |
| Marty O'Toole | PIT | 2.42 | 191208100_PIT_LAN |
| Smoky Joe Wood | BOS | 1.74 | 191208100_BOS_DET |
| Pete Alexander | PHI | 1.05 | 191208101_CIN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| George McConnell | NYA | -2.41 | 191208090_NYA_CLE |
| Earl Hamilton | BAL | -1.43 | 191208110_MIN_BAL |
| Ed Willett | DET | -1.15 | 191208100_BOS_DET |
| Boardwalk Brown | OAK | -0.99 | 191208090_OAK_CHA |
| Bob Groom | MIN | -0.92 | 191208101_MIN_BAL |
Based on accumulated WAA for this season up to 1912-08-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.56 | Walter Johnson | 264.7 | MIN |
| +002+ | 9.67 | Christy Mathewson | 209.7 | SFN |
| +003+ | 9.15 | Rube Marquard | 213 | SFN |
| +004+ | 8.61 | Nap Rucker | 200.7 | LAN |
| +005+ | 8.35 | Claude Hendrix | 217.7 | PIT |
| +007+ | 7.45 | Slim Sallee | 218 | SLN |
| +008+ | 6.9 | Marty O'Toole | 204.3 | PIT |
| +010+ | 5.87 | Smoky Joe Wood | 246 | BOS |
| +011+ | 5.84 | Jimmy Lavender | 173.3 | CHN |
| +012+ | 5.77 | Ed Walsh | 279.3 | CHA |
| +013+ | 5.73 | Rube Benton | 206 | CIN |
| +016+ | 5.31 | Pete Alexander | 211.7 | PHI |
| +018+ | 4.29 | Lew Richie | 165.7 | CHN |
| +019+ | 4.28 | Jeff Tesreau | 125.7 | SFN |
| +024+ | 3.91 | Larry Cheney | 200 | CHN |
| +025+ | 3.85 | George Suggs | 197.3 | CIN |
| +028+ | 3.63 | Vean Gregg | 183 | CLE |
| +029+ | 3.62 | Art Fromme | 181.7 | CIN |
| +032+ | 3.3 | Jean Dubuc | 201.7 | DET |
| +033+ | 3.29 | Howie Camnitz | 185.7 | PIT |
| +034+ | 3.27 | Lefty Leifield | 82.7 | TOT |
| +036+ | 3.24 | Ad Brennan | 168 | PHI |
| +039+ | 3.04 | Rube Geyer | 110.7 | SLN |
| +042+ | 2.95 | Eppa Rixey | 72.7 | PHI |
| +043+ | 2.95 | Hooks Wiltse | 109.3 | SFN |
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