| Starter | Tm | Tier | Game |
|---|---|---|---|
| Christy Mathewson | SFN | 6.67 | 191206221_SFN_ATL |
| Ed Walsh | CHA | 5.83 | 191206210_BAL_CHA |
| Slim Sallee | SLN | 2.79 | 191206200_CHN_SLN |
| Smoky Joe Wood | BOS | 1.89 | 191206210_BOS_NYA |
| Eddie Plank | OAK | 1.68 | 191206201_MIN_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Carl Cashion | MIN | -2.48 | 191206202_MIN_OAK |
| Joe Willis | SLN | -1.44 | 191206210_CHN_SLN |
| Boardwalk Brown | OAK | -1.4 | 191206202_MIN_OAK |
| Jack Quinn | NYA | -1.04 | 191206210_BOS_NYA |
| Joe Lake | DET | -0.97 | 191206200_CLE_DET |
Based on accumulated WAA for this season up to 1912-06-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.97 | Rube Marquard | 133.3 | SFN |
| +003+ | 6.16 | Slim Sallee | 122 | SLN |
| +004+ | 5.39 | Larry Cheney | 141.7 | CHN |
| +005+ | 4.98 | Christy Mathewson | 115.7 | SFN |
| +006+ | 4.87 | Ed Walsh | 158.7 | CHA |
| +010+ | 3.88 | Marty O'Toole | 107 | PIT |
| +011+ | 3.86 | Rube Benton | 118 | CIN |
| +012+ | 3.69 | George Suggs | 105.7 | CIN |
| +014+ | 3.39 | Claude Hendrix | 112.7 | PIT |
| +016+ | 3.3 | Nap Rucker | 101 | LAN |
| +017+ | 3.19 | Joe Benz | 103.7 | CHA |
| +018+ | 3.14 | Hub Perdue | 110.3 | ATL |
| +019+ | 3.01 | Hooks Wiltse | 61 | SFN |
| +020+ | 2.84 | Ad Brennan | 96.3 | PHI |
| +021+ | 2.81 | Charley Hall | 96 | BOS |
| +022+ | 2.65 | Red Ames | 76.7 | SFN |
| +025+ | 2.42 | Lew Richie | 63.7 | CHN |
| +026+ | 2.36 | Cliff Curtis | 46 | PHI |
| +027+ | 2.31 | Eddie Plank | 102.7 | OAK |
| +033+ | 1.89 | Vean Gregg | 87.3 | CLE |
| +036+ | 1.81 | Smoky Joe Wood | 149.3 | BOS |
| +038+ | 1.77 | Chief Bender | 76.3 | OAK |
| +042+ | 1.75 | Howie Camnitz | 106.7 | PIT |
| +043+ | 1.73 | Walt Dickson | 63 | ATL |
| +051+ | 1.37 | Bert Humphries | 58.7 | CIN |
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