| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 11.05 | 191205302_MIN_BOS |
| Ed Walsh | CHA | 7.53 | 191205301_CHA_CLE |
| Christy Mathewson | SFN | 5.51 | 191206010_SLN_SFN |
| Chief Bender | OAK | 3.19 | 191206010_OAK_CHA |
| Slim Sallee | SLN | 2.08 | 191205301_SLN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Caldwell | NYA | -2.68 | 191206010_NYA_DET |
| Bill Steele | SLN | -1.79 | 191206010_SLN_SFN |
| Willie Mitchell | CLE | -1.69 | 191205301_CHA_CLE |
| Red Nelson | BAL | -1.08 | 191206010_MIN_BAL |
| Cliff Curtis | PHI | -0.88 | 191206010_PIT_PHI |
Based on accumulated WAA for this season up to 1912-06-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.16 | Walter Johnson | 111 | MIN |
| +002+ | 5.98 | Rube Marquard | 85 | SFN |
| +003+ | 4.61 | Slim Sallee | 93.7 | SLN |
| +004+ | 4.26 | Ed Walsh | 112.3 | CHA |
| +005+ | 3.9 | Hooks Wiltse | 39 | SFN |
| +006+ | 3.09 | Marty O'Toole | 74.7 | PIT |
| +007+ | 3.03 | Christy Mathewson | 78.7 | SFN |
| +008+ | 2.73 | Larry Cheney | 96.3 | CHN |
| +009+ | 2.67 | Rube Benton | 78.7 | CIN |
| +011+ | 2.6 | Red Ames | 53.3 | SFN |
| +013+ | 2.52 | Ad Brennan | 62.7 | PHI |
| +015+ | 2.31 | Lew Richie | 55.7 | CHN |
| +016+ | 2.26 | George Baumgardner | 52.7 | BAL |
| +018+ | 2.13 | Joe Benz | 72.7 | CHA |
| +019+ | 2.08 | Hub Perdue | 82.3 | ATL |
| +023+ | 1.75 | Claude Hendrix | 69.7 | PIT |
| +027+ | 1.64 | Vean Gregg | 64.7 | CLE |
| +029+ | 1.61 | Babe Adams | 68.3 | PIT |
| +031+ | 1.53 | Tom Seaton | 75.3 | PHI |
| +032+ | 1.52 | George Kahler | 88.7 | CLE |
| +034+ | 1.5 | Smoky Joe Wood | 100.7 | BOS |
| +033+ | 1.5 | Buster Brown | 54.7 | ATL |
| +037+ | 1.41 | Eddie Plank | 55 | OAK |
| +040+ | 1.39 | Jean Dubuc | 60.3 | DET |
| +042+ | 1.37 | Walt Dickson | 37.3 | ATL |
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