| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 9.6 | 191205110_CLE_MIN |
| Eddie Plank | OAK | 5.5 | 191205110_CHA_OAK |
| Ed Walsh | CHA | 5.41 | 191205130_CHA_OAK |
| Smoky Joe Wood | BOS | 3.54 | 191205110_BAL_BOS |
| Lew Richie | CHN | 3.49 | 191205110_SFN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Tyler | ATL | -2.67 | 191205120_ATL_SLN |
| Bob Ewing | SLN | -1.21 | 191205130_ATL_SLN |
| Boardwalk Brown | OAK | -1.05 | 191205130_CHA_OAK |
| Elmer Brown | BAL | -0.76 | 191205110_BAL_BOS |
| Ralph Works | DET | -0.75 | 191205130_DET_NYA |
Based on accumulated WAA for this season up to 1912-05-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.15 | Walter Johnson | 67 | MIN |
| +002+ | 3.32 | George Kahler | 53 | CLE |
| +003+ | 2.92 | Rube Marquard | 49 | SFN |
| +004+ | 2.62 | Lew Richie | 45.7 | CHN |
| +005+ | 2.31 | George Baumgardner | 32.7 | BAL |
| +006+ | 2.27 | Ed Walsh | 74 | CHA |
| +007+ | 2.01 | Maury Kent | 41.3 | LAN |
| +008+ | 1.98 | Marty O'Toole | 41 | PIT |
| +009+ | 1.96 | Christy Mathewson | 45.7 | SFN |
| +014+ | 1.65 | Jeff Tesreau | 40.3 | SFN |
| +015+ | 1.63 | George Mogridge | 24.3 | CHA |
| +016+ | 1.63 | Buster Brown | 26.3 | ATL |
| +019+ | 1.56 | Bob Groom | 50 | MIN |
| +022+ | 1.36 | Smoky Joe Wood | 62.7 | BOS |
| +023+ | 1.33 | Slim Sallee | 57.3 | SLN |
| +024+ | 1.31 | Hub Perdue | 50 | ATL |
| +025+ | 1.29 | Red Ames | 26 | SFN |
| XXXXX | 1.22 | Rube Benton | 41.7 | CIN |
| XXXXX | 1.21 | Eddie Stack | 25.7 | LAN |
| XXXXX | 1.15 | Eddie Plank | 45.7 | OAK |
| XXXXX | 1.11 | Joe Benz | 30 | CHA |
| XXXXX | 1.06 | Larry Cheney | 51.3 | CHN |
| XXXXX | 1.05 | Babe Adams | 44.3 | PIT |
| XXXXX | 1.02 | Claude Hendrix | 37.7 | PIT |
| XXXXX | 0.8 | George Suggs | 48.3 | CIN |
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