| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 10.08 | 191205251_MIN_NYA |
| Ed Walsh | CHA | 7.43 | 191205250_DET_CHA |
| Smoky Joe Wood | BOS | 5.04 | 191205250_OAK_BOS |
| Rube Marquard | SFN | 2.45 | 191205240_SFN_LAN |
| Lew Richie | CHN | 2.01 | 191205240_CHN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Russell | OAK | -2.26 | 191205240_OAK_BOS |
| Ralph Works | DET | -0.96 | 191205250_DET_CHA |
| Hippo Vaughn | NYA | -0.87 | 191205252_MIN_NYA |
| Bob Harmon | SLN | -0.82 | 191205260_CIN_SLN |
| Dixie Walker | MIN | -0.76 | 191205240_MIN_NYA |
Based on accumulated WAA for this season up to 1912-05-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.18 | Rube Marquard | 76 | SFN |
| +002+ | 4.7 | Walter Johnson | 93 | MIN |
| +004+ | 3.39 | Marty O'Toole | 66 | PIT |
| +005+ | 3.31 | Ed Walsh | 103.3 | CHA |
| +006+ | 3.05 | Hooks Wiltse | 31 | SFN |
| +007+ | 3.02 | Christy Mathewson | 62.7 | SFN |
| +008+ | 2.29 | Rube Benton | 70.7 | CIN |
| +009+ | 2.26 | Joe Benz | 62.7 | CHA |
| +010+ | 2.2 | Lew Richie | 55.7 | CHN |
| +011+ | 2.09 | Smoky Joe Wood | 91.7 | BOS |
| +012+ | 2.09 | Larry Cheney | 87.3 | CHN |
| +013+ | 2.06 | Red Ames | 44.3 | SFN |
| +014+ | 2.05 | Hub Perdue | 73.7 | ATL |
| +017+ | 1.98 | Ad Brennan | 51.7 | PHI |
| +020+ | 1.86 | Jeff Tesreau | 42.3 | SFN |
| +023+ | 1.66 | Walt Dickson | 30.7 | ATL |
| +024+ | 1.59 | Babe Adams | 56.3 | PIT |
| +026+ | 1.53 | Claude Hendrix | 55.7 | PIT |
| +029+ | 1.48 | Eddie Plank | 51 | OAK |
| +034+ | 1.38 | George Baumgardner | 43.7 | BAL |
| +036+ | 1.37 | Charley Hall | 52.3 | BOS |
| +037+ | 1.29 | Vean Gregg | 55.7 | CLE |
| XXXXX | 1.19 | Buster Brown | 46.7 | ATL |
| XXXXX | 1.08 | Tom Seaton | 63.3 | PHI |
| XXXXX | 1.06 | George Mogridge | 25 | CHA |
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