| Starter | Tm | Tier | Game |
|---|---|---|---|
| Christy Mathewson | SFN | 6.67 | 191206221_SFN_ATL |
| Ed Walsh | CHA | 5.83 | 191206210_BAL_CHA |
| Slim Sallee | SLN | 3.79 | 191206230_SLN_CHN |
| Smoky Joe Wood | BOS | 1.89 | 191206210_BOS_NYA |
| Larry Cheney | CHN | 1.55 | 191206220_CHN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Willis | SLN | -1.44 | 191206210_CHN_SLN |
| Jack Quinn | NYA | -1.04 | 191206210_BOS_NYA |
| Ralph Works | DET | -0.69 | 191206230_DET_BAL |
| Mack Allison | BAL | -0.68 | 191206210_BAL_CHA |
| Fred Blanding | CLE | -0.56 | 191206210_CLE_DET |
Based on accumulated WAA for this season up to 1912-06-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.93 | Rube Marquard | 133.3 | SFN |
| +003+ | 6.09 | Slim Sallee | 130 | SLN |
| +004+ | 5.36 | Larry Cheney | 141.7 | CHN |
| +005+ | 4.95 | Christy Mathewson | 115.7 | SFN |
| +006+ | 4.93 | Ed Walsh | 159.7 | CHA |
| +007+ | 4.71 | Rube Benton | 127 | CIN |
| +010+ | 4.25 | Marty O'Toole | 113 | PIT |
| +012+ | 3.66 | George Suggs | 105.7 | CIN |
| +014+ | 3.38 | Claude Hendrix | 112.7 | PIT |
| +016+ | 3.28 | Nap Rucker | 101 | LAN |
| +017+ | 3.16 | Joe Benz | 103.7 | CHA |
| +018+ | 3.11 | Hub Perdue | 110.3 | ATL |
| +019+ | 2.99 | Hooks Wiltse | 61 | SFN |
| +020+ | 2.86 | Lew Richie | 72.7 | CHN |
| +021+ | 2.82 | Ad Brennan | 96.3 | PHI |
| +022+ | 2.78 | Charley Hall | 96 | BOS |
| +025+ | 2.63 | Red Ames | 76.7 | SFN |
| +026+ | 2.54 | Vean Gregg | 96.3 | CLE |
| +027+ | 2.34 | Cliff Curtis | 46 | PHI |
| +028+ | 2.28 | Eddie Plank | 102.7 | OAK |
| +037+ | 1.76 | Smoky Joe Wood | 149.3 | BOS |
| +040+ | 1.75 | Chief Bender | 76.3 | OAK |
| +041+ | 1.74 | Howie Camnitz | 106.7 | PIT |
| +043+ | 1.71 | Walt Dickson | 63 | ATL |
| +050+ | 1.35 | Bert Humphries | 58.7 | CIN |
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