| Starter | Tm | Tier | Game |
|---|---|---|---|
| Smoky Joe Wood | BOS | 4.15 | 191205150_BAL_BOS |
| Rube Marquard | SFN | 1.4 | 191205160_SFN_PIT |
| Vean Gregg | CLE | 0.58 | 191205140_CLE_MIN |
| Slim Sallee | SLN | 0.34 | 191205140_LAN_SLN |
| Jack Coombs | OAK | 0.34 | 191205140_CHA_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Warhop | NYA | -2.55 | 191205150_DET_NYA |
| Joe Willis | SLN | -1.03 | 191205150_LAN_SLN |
| Barney Pelty | BAL | -0.52 | 191205150_BAL_BOS |
| Eddie Stack | LAN | -0.5 | 191205150_LAN_SLN |
| Hub Perdue | ATL | -0.49 | 191205160_ATL_CIN |
Based on accumulated WAA for this season up to 1912-05-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.02 | Walter Johnson | 67 | MIN |
| +002+ | 3.71 | Rube Marquard | 58 | SFN |
| +003+ | 3.23 | George Kahler | 53 | CLE |
| +004+ | 2.56 | Lew Richie | 45.7 | CHN |
| +005+ | 2.27 | Marty O'Toole | 49 | PIT |
| +006+ | 2.2 | Ed Walsh | 74 | CHA |
| +007+ | 2.11 | Slim Sallee | 66.3 | SLN |
| +008+ | 2 | Buster Brown | 37 | ATL |
| +009+ | 1.97 | Maury Kent | 41.3 | LAN |
| +011+ | 1.92 | Joe Benz | 39 | CHA |
| +010+ | 1.92 | Smoky Joe Wood | 71.7 | BOS |
| +012+ | 1.89 | Christy Mathewson | 45.7 | SFN |
| +013+ | 1.82 | Larry Cheney | 60.3 | CHN |
| +014+ | 1.78 | George Baumgardner | 40.7 | BAL |
| +016+ | 1.74 | Bob Groom | 59 | MIN |
| +019+ | 1.7 | Red Ames | 35 | SFN |
| +021+ | 1.68 | Hub Perdue | 57 | ATL |
| +022+ | 1.64 | George Mogridge | 24.7 | CHA |
| +024+ | 1.58 | Jeff Tesreau | 40.3 | SFN |
| +029+ | 1.26 | Eddie Plank | 47.7 | OAK |
| XXXXX | 1.13 | Rube Benton | 41.7 | CIN |
| XXXXX | 0.97 | Babe Adams | 44.3 | PIT |
| XXXXX | 0.95 | Claude Hendrix | 37.7 | PIT |
| XXXXX | 0.87 | Tom Seaton | 43.3 | PHI |
| XXXXX | 0.76 | Art Fromme | 49 | CIN |
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