| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 10.6 | 191205080_CHA_MIN |
| Smoky Joe Wood | BOS | 3.2 | 191205070_DET_BOS |
| Rube Marquard | SFN | 0.64 | 191205070_SFN_SLN |
| Earl Moore | PHI | 0.46 | 191205080_PHI_CIN |
| George Suggs | CIN | 0.34 | 191205070_PHI_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Steele | SLN | -2.42 | 191205070_SFN_SLN |
| Lefty Tyler | ATL | -1.81 | 191205060_ATL_CHN |
| Tom Seaton | PHI | -0.19 | 191205070_PHI_CIN |
| George Mullin | DET | -0.18 | 191205070_DET_BOS |
| Bob Groom | MIN | -0.08 | 191205070_CHA_MIN |
Based on accumulated WAA for this season up to 1912-05-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.26 | Walter Johnson | 58 | MIN |
| +002+ | 2.93 | Lew Richie | 40.7 | CHN |
| +003+ | 2.59 | George Kahler | 44 | CLE |
| +004+ | 2.24 | Rube Marquard | 40 | SFN |
| +005+ | 2.15 | Eddie Plank | 36.7 | OAK |
| +007+ | 1.89 | Christy Mathewson | 36.7 | SFN |
| +009+ | 1.71 | Bob Groom | 41 | MIN |
| +011+ | 1.63 | Buster Brown | 26.3 | ATL |
| +012+ | 1.59 | Charley Hall | 37.3 | BOS |
| +013+ | 1.57 | Marty O'Toole | 35 | PIT |
| +015+ | 1.49 | Ed Walsh | 64 | CHA |
| +016+ | 1.45 | Jeff Tesreau | 32.3 | SFN |
| +017+ | 1.44 | Maury Kent | 26 | LAN |
| +019+ | 1.38 | Ad Brennan | 27.7 | PHI |
| +021+ | 1.34 | George Mogridge | 21.3 | CHA |
| XXXXX | 1.17 | Eddie Stack | 19.3 | LAN |
| XXXXX | 0.99 | Larry Cheney | 42.3 | CHN |
| XXXXX | 0.95 | Joe Benz | 24 | CHA |
| XXXXX | 0.94 | Claude Hendrix | 30.7 | PIT |
| XXXXX | 0.92 | Hub Perdue | 42 | ATL |
| XXXXX | 0.86 | Ed Willett | 44 | DET |
| XXXXX | 0.71 | Slim Sallee | 48.3 | SLN |
| XXXXX | 0.71 | Harry Gaspar | 12 | CIN |
| XXXXX | 0.7 | Rube Geyer | 18 | SLN |
| XXXXX | 0.7 | Chief Bender | 22 | OAK |
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