| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 10.84 | 191206040_MIN_BAL |
| Ed Walsh | CHA | 7.64 | 191206020_OAK_CHA |
| Rube Marquard | SFN | 3.8 | 191206030_SLN_SFN |
| Smoky Joe Wood | BOS | 2.72 | 191206020_BOS_CLE |
| Eddie Plank | OAK | 2.29 | 191206030_OAK_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Warhop | NYA | -2.31 | 191206030_NYA_DET |
| Lefty George | CLE | -1.69 | 191206020_BOS_CLE |
| Lefty Tyler | ATL | -1.5 | 191206040_CHN_ATL |
| Bob Groom | MIN | -1.35 | 191206020_MIN_BAL |
| Ralph Works | DET | -0.99 | 191206040_NYA_DET |
Based on accumulated WAA for this season up to 1912-06-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.59 | Walter Johnson | 120 | MIN |
| +002+ | 6.21 | Rube Marquard | 94 | SFN |
| +003+ | 4.92 | Slim Sallee | 96.7 | SLN |
| +004+ | 4.38 | Ed Walsh | 120.3 | CHA |
| +005+ | 4.11 | Hooks Wiltse | 41.3 | SFN |
| +006+ | 3.37 | Larry Cheney | 105.3 | CHN |
| +007+ | 3.03 | Red Ames | 60 | SFN |
| +008+ | 3 | Christy Mathewson | 78.7 | SFN |
| +009+ | 2.9 | Rube Benton | 87.7 | CIN |
| +010+ | 2.78 | Ad Brennan | 71.7 | PHI |
| +013+ | 2.29 | Lew Richie | 55.7 | CHN |
| +014+ | 2.28 | Vean Gregg | 73.7 | CLE |
| +015+ | 2.25 | Marty O'Toole | 78.7 | PIT |
| +018+ | 2.11 | Joe Benz | 74.7 | CHA |
| +020+ | 2.05 | Jean Dubuc | 69.3 | DET |
| +022+ | 2.02 | Hub Perdue | 82.3 | ATL |
| +026+ | 1.72 | Claude Hendrix | 77.7 | PIT |
| +030+ | 1.64 | Smoky Joe Wood | 110.7 | BOS |
| +032+ | 1.63 | Babe Adams | 68.3 | PIT |
| +034+ | 1.54 | George Baumgardner | 58.3 | BAL |
| +035+ | 1.5 | Pete Alexander | 85.7 | PHI |
| +036+ | 1.48 | Tom Seaton | 75.3 | PHI |
| +037+ | 1.47 | Eddie Plank | 64 | OAK |
| +038+ | 1.47 | Buster Brown | 54.7 | ATL |
| +039+ | 1.46 | George Kahler | 88.7 | CLE |
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