| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 10.57 | 191205210_DET_MIN |
| Ed Walsh | CHA | 6.88 | 191205200_CHA_BOS |
| Smoky Joe Wood | BOS | 4.54 | 191205200_CHA_BOS |
| Eddie Plank | OAK | 3.23 | 191205210_BAL_OAK |
| Russ Ford | NYA | 2.88 | 191205210_CHA_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Harmon | SLN | -2.12 | 191205190_PHI_SLN |
| Dixie Walker | MIN | -0.84 | 191205200_BAL_MIN |
| Fred Blanding | CLE | -0.63 | 191205200_CLE_NYA |
| Hippo Vaughn | NYA | -0.53 | 191205200_CLE_NYA |
| Howie Camnitz | PIT | -0.28 | 191205210_ATL_PIT |
Based on accumulated WAA for this season up to 1912-05-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.04 | Walter Johnson | 85 | MIN |
| +002+ | 4.67 | Rube Marquard | 67 | SFN |
| +003+ | 3.12 | Ed Walsh | 91 | CHA |
| +004+ | 3.07 | Slim Sallee | 75.3 | SLN |
| +005+ | 2.88 | Smoky Joe Wood | 80.7 | BOS |
| +007+ | 2.58 | Joe Benz | 49.7 | CHA |
| +009+ | 2.34 | George Kahler | 58 | CLE |
| +011+ | 2.32 | Marty O'Toole | 49 | PIT |
| +010+ | 2.32 | Christy Mathewson | 53.7 | SFN |
| +012+ | 2.03 | Red Ames | 44.3 | SFN |
| +013+ | 2.01 | Hub Perdue | 65.7 | ATL |
| +014+ | 1.93 | Larry Cheney | 69.3 | CHN |
| +017+ | 1.84 | Jeff Tesreau | 42.3 | SFN |
| +020+ | 1.59 | Maury Kent | 43.3 | LAN |
| +024+ | 1.43 | Eddie Plank | 51 | OAK |
| +025+ | 1.39 | Rube Benton | 50.7 | CIN |
| +027+ | 1.34 | Tom Seaton | 55.7 | PHI |
| +028+ | 1.26 | Ad Brennan | 42.7 | PHI |
| XXXXX | 1.19 | George Baumgardner | 42.3 | BAL |
| XXXXX | 1.1 | George Mogridge | 25 | CHA |
| XXXXX | 1.08 | Pat Ragan | 14.3 | LAN |
| XXXXX | 1.06 | George Suggs | 58.3 | CIN |
| XXXXX | 1.04 | Claude Hendrix | 46.7 | PIT |
| XXXXX | 1.01 | Vean Gregg | 46.7 | CLE |
| XXXXX | 0.97 | Buster Brown | 38.7 | ATL |
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