| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 10.6 | 191205080_CHA_MIN |
| Christy Mathewson | SFN | 6.17 | 191205090_SFN_SLN |
| Cy Morgan | OAK | 2.15 | 191205100_CLE_OAK |
| Vean Gregg | CLE | 0.57 | 191205100_CLE_OAK |
| Earl Moore | PHI | 0.46 | 191205080_PHI_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cliff Curtis | PHI | -1.62 | 191205090_PHI_CIN |
| Bill Burns | DET | -1.56 | 191205090_DET_BOS |
| Bob Harmon | SLN | -1.18 | 191205080_SFN_SLN |
| Dixie Walker | MIN | -0.6 | 191205090_CHA_MIN |
| Hub Perdue | ATL | -0.57 | 191205100_ATL_SLN |
Based on accumulated WAA for this season up to 1912-05-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.17 | Walter Johnson | 58 | MIN |
| +002+ | 2.89 | Lew Richie | 40.7 | CHN |
| +003+ | 2.55 | George Kahler | 44 | CLE |
| +004+ | 2.23 | George Baumgardner | 32.7 | BAL |
| +005+ | 2.18 | Rube Marquard | 40 | SFN |
| +006+ | 2.13 | Christy Mathewson | 45.7 | SFN |
| +007+ | 2.12 | Eddie Plank | 36.7 | OAK |
| +008+ | 1.92 | Marty O'Toole | 41 | PIT |
| +011+ | 1.61 | Buster Brown | 26.3 | ATL |
| +012+ | 1.6 | George Mogridge | 24.3 | CHA |
| +013+ | 1.54 | Maury Kent | 33.3 | LAN |
| +014+ | 1.52 | Bob Groom | 50 | MIN |
| +016+ | 1.4 | Jeff Tesreau | 32.3 | SFN |
| +018+ | 1.38 | Red Ames | 26 | SFN |
| +023+ | 1.33 | Slim Sallee | 57.3 | SLN |
| +025+ | 1.28 | Hub Perdue | 50 | ATL |
| XXXXX | 1.21 | Charley Hall | 42.3 | BOS |
| XXXXX | 1.19 | Larry Cheney | 51.3 | CHN |
| XXXXX | 1.17 | Eddie Stack | 25.7 | LAN |
| XXXXX | 1.07 | Joe Benz | 30 | CHA |
| XXXXX | 0.96 | Claude Hendrix | 37.7 | PIT |
| XXXXX | 0.77 | Jack Quinn | 42.7 | NYA |
| XXXXX | 0.73 | Harry Gaspar | 19 | CIN |
| XXXXX | 0.68 | Ed Willett | 53 | DET |
| XXXXX | 0.68 | Chief Bender | 22 | OAK |
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