| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 10.21 | 191206290_OAK_MIN |
| Rube Marquard | SFN | 5.98 | 191206290_ATL_SFN |
| Chief Bender | OAK | 2.32 | 191206281_OAK_MIN |
| Smoky Joe Wood | BOS | 2.04 | 191206292_NYA_BOS |
| Nap Rucker | LAN | 1.68 | 191206291_LAN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Steele | SLN | -3.17 | 191206290_SLN_CIN |
| Jack Quinn | NYA | -3.09 | 191206291_NYA_BOS |
| Earl Hamilton | BAL | -2.83 | 191206280_CLE_BAL |
| Hippo Vaughn | MIN | -2.09 | 191206281_OAK_MIN |
| Ralph Works | DET | -0.96 | 191206270_DET_CLE |
Based on accumulated WAA for this season up to 1912-06-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.51 | Rube Marquard | 151.3 | SFN |
| +002+ | 8.47 | Walter Johnson | 162.3 | MIN |
| +003+ | 6.24 | Slim Sallee | 140 | SLN |
| +004+ | 5.09 | Christy Mathewson | 124.7 | SFN |
| +007+ | 4.84 | Larry Cheney | 145.7 | CHN |
| +008+ | 4.78 | Marty O'Toole | 122 | PIT |
| +009+ | 4.62 | Rube Benton | 136 | CIN |
| +010+ | 4.45 | Nap Rucker | 122 | LAN |
| +011+ | 4.34 | George Suggs | 113.7 | CIN |
| +013+ | 4.08 | Ed Walsh | 167.7 | CHA |
| +015+ | 3.87 | Joe Benz | 114.3 | CHA |
| +016+ | 3.86 | Claude Hendrix | 123.3 | PIT |
| +017+ | 3.79 | Lew Richie | 82.7 | CHN |
| +019+ | 3.28 | Smoky Joe Wood | 165.3 | BOS |
| +020+ | 3.22 | Red Ames | 85.7 | SFN |
| +021+ | 3.18 | Hooks Wiltse | 70 | SFN |
| +023+ | 2.74 | Ad Brennan | 111.3 | PHI |
| +024+ | 2.69 | Jimmy Lavender | 84.3 | CHN |
| +025+ | 2.58 | Charley Hall | 105 | BOS |
| +032+ | 2.37 | Chief Bender | 94.3 | OAK |
| +033+ | 2.36 | Howie Camnitz | 123 | PIT |
| +036+ | 2.16 | Eddie Plank | 115.7 | OAK |
| +044+ | 1.89 | Pete Alexander | 121.7 | PHI |
| +043+ | 1.89 | Jack Coombs | 115 | OAK |
| +045+ | 1.86 | Cliff Curtis | 48 | PHI |
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