| Starter | Tm | Tier | Game |
|---|---|---|---|
| Christy Mathewson | SFN | 4.66 | 191207041_LAN_SFN |
| Ed Walsh | CHA | 3.94 | 191207050_DET_CHA |
| Nap Rucker | LAN | 2.36 | 191207060_SFN_LAN |
| Smoky Joe Wood | BOS | 2.32 | 191207041_BOS_OAK |
| Slim Sallee | SLN | 2.25 | 191207041_CHN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Quinn | NYA | -4.4 | 191207042_NYA_MIN |
| Carl Cashion | MIN | -2.46 | 191207041_NYA_MIN |
| Bill Steele | SLN | -1.77 | 191207060_CHN_SLN |
| Ralph Works | DET | -1.68 | 191207050_DET_CHA |
| Cy Barger | LAN | -0.52 | 191207050_LAN_SFN |
Based on accumulated WAA for this season up to 1912-07-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.72 | Walter Johnson | 181 | MIN |
| +002+ | 9.61 | Rube Marquard | 160.3 | SFN |
| +003+ | 6.67 | Slim Sallee | 157 | SLN |
| +004+ | 6.13 | Christy Mathewson | 137.7 | SFN |
| +005+ | 5.91 | Marty O'Toole | 143 | PIT |
| +006+ | 5.49 | Nap Rucker | 132 | LAN |
| +008+ | 5.25 | Ed Walsh | 189 | CHA |
| +010+ | 5.02 | Larry Cheney | 159 | CHN |
| +012+ | 4.82 | George Suggs | 131.3 | CIN |
| +011+ | 4.82 | Jimmy Lavender | 105.3 | CHN |
| +013+ | 4.72 | Claude Hendrix | 137.3 | PIT |
| +017+ | 3.97 | Rube Benton | 144 | CIN |
| +018+ | 3.72 | Joe Benz | 129.7 | CHA |
| +019+ | 3.49 | Smoky Joe Wood | 173.3 | BOS |
| +022+ | 3.38 | Lew Richie | 101.3 | CHN |
| +023+ | 3.34 | Red Ames | 96.3 | SFN |
| +027+ | 2.89 | Hooks Wiltse | 81 | SFN |
| +030+ | 2.6 | Eddie Plank | 124.7 | OAK |
| +034+ | 2.4 | Ad Brennan | 124 | PHI |
| +038+ | 2.31 | Howie Camnitz | 132 | PIT |
| +041+ | 2.12 | Rube Geyer | 68.3 | SLN |
| +046+ | 1.95 | Mordecai Brown | 67.3 | CHN |
| +051+ | 1.75 | Jean Dubuc | 128 | DET |
| +052+ | 1.71 | Vean Gregg | 112.3 | CLE |
| +054+ | 1.62 | Jack Powell | 112 | BAL |
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