| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 11.05 | 191205302_MIN_BOS |
| Ed Walsh | CHA | 7.53 | 191205301_CHA_CLE |
| Smoky Joe Wood | BOS | 3.97 | 191205291_MIN_BOS |
| Rube Marquard | SFN | 3.51 | 191205301_SFN_PHI |
| Slim Sallee | SLN | 2.08 | 191205301_SLN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Willie Mitchell | CLE | -1.69 | 191205301_CHA_CLE |
| Dixie Walker | MIN | -1.69 | 191205291_MIN_BOS |
| Hippo Vaughn | NYA | -1.2 | 191205300_OAK_NYA |
| Elmer Brown | BAL | -0.76 | 191205290_DET_BAL |
| Bob Harmon | SLN | -0.69 | 191205302_SLN_PIT |
Based on accumulated WAA for this season up to 1912-05-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.12 | Walter Johnson | 111 | MIN |
| +002+ | 5.94 | Rube Marquard | 85 | SFN |
| +003+ | 4.54 | Slim Sallee | 93.7 | SLN |
| +004+ | 4.2 | Ed Walsh | 112.3 | CHA |
| +005+ | 3.88 | Hooks Wiltse | 39 | SFN |
| +006+ | 3.06 | Marty O'Toole | 74.7 | PIT |
| +007+ | 2.94 | Christy Mathewson | 69.7 | SFN |
| +009+ | 2.68 | Larry Cheney | 96.3 | CHN |
| +010+ | 2.64 | Rube Benton | 78.7 | CIN |
| +011+ | 2.58 | Red Ames | 53.3 | SFN |
| +012+ | 2.5 | Ad Brennan | 62.7 | PHI |
| +014+ | 2.34 | Joe Benz | 68.7 | CHA |
| +015+ | 2.28 | Lew Richie | 55.7 | CHN |
| +016+ | 2.24 | George Baumgardner | 52.7 | BAL |
| +020+ | 1.87 | Hub Perdue | 80.7 | ATL |
| +023+ | 1.72 | Claude Hendrix | 69.7 | PIT |
| +024+ | 1.7 | Charley Hall | 61.3 | BOS |
| +025+ | 1.64 | Walt Dickson | 34 | ATL |
| +028+ | 1.61 | Vean Gregg | 64.7 | CLE |
| +031+ | 1.59 | Babe Adams | 68.3 | PIT |
| +032+ | 1.48 | Buster Brown | 54.7 | ATL |
| +036+ | 1.42 | Smoky Joe Wood | 100.7 | BOS |
| +037+ | 1.4 | Tom Seaton | 72.3 | PHI |
| +040+ | 1.37 | Eddie Plank | 55 | OAK |
| +042+ | 1.36 | Jean Dubuc | 60.3 | DET |
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