| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 11.93 | 191206080_MIN_CHA |
| Rube Marquard | SFN | 3.94 | 191206080_CIN_SFN |
| Chief Bender | OAK | 2.42 | 191206100_OAK_CLE |
| Slim Sallee | SLN | 2.23 | 191206100_SLN_ATL |
| Smoky Joe Wood | BOS | 1.94 | 191206080_BOS_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Warhop | NYA | -2 | 191206080_NYA_CLE |
| Joe Willis | SLN | -0.99 | 191206080_SLN_PHI |
| Howie Camnitz | PIT | -0.95 | 191206100_PIT_LAN |
| Cy Barger | LAN | -0.94 | 191206080_CHN_LAN |
| Lefty Tyler | ATL | -0.94 | 191206080_PIT_ATL |
Based on accumulated WAA for this season up to 1912-06-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.42 | Walter Johnson | 133 | MIN |
| +002+ | 6.85 | Rube Marquard | 103 | SFN |
| +003+ | 4.75 | Slim Sallee | 101 | SLN |
| +004+ | 4.02 | Larry Cheney | 114.3 | CHN |
| +005+ | 3.97 | Ed Walsh | 126.7 | CHA |
| +007+ | 3.44 | Christy Mathewson | 87.7 | SFN |
| +008+ | 3.33 | Hooks Wiltse | 46.3 | SFN |
| +009+ | 3.25 | Rube Benton | 94.7 | CIN |
| +010+ | 3.23 | George Kahler | 106.7 | CLE |
| +014+ | 3 | Red Ames | 60 | SFN |
| +015+ | 2.94 | Marty O'Toole | 87.7 | PIT |
| +016+ | 2.9 | Ad Brennan | 77.3 | PHI |
| +017+ | 2.63 | Claude Hendrix | 86.7 | PIT |
| +019+ | 2.42 | Tom Seaton | 89 | PHI |
| +020+ | 2.3 | Jean Dubuc | 78.3 | DET |
| +022+ | 1.98 | Hub Perdue | 82.3 | ATL |
| +023+ | 1.94 | Walt Dickson | 45.3 | ATL |
| +029+ | 1.84 | Jack Powell | 72 | BAL |
| +031+ | 1.75 | Lew Richie | 56.7 | CHN |
| +034+ | 1.62 | Babe Adams | 68.3 | PIT |
| +035+ | 1.6 | Chief Bender | 59 | OAK |
| +036+ | 1.55 | Eddie Plank | 73 | OAK |
| +039+ | 1.52 | Buster Brown | 63.7 | ATL |
| +040+ | 1.46 | Joe Benz | 78.7 | CHA |
| +043+ | 1.41 | Cliff Curtis | 28 | PHI |
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