| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 11.55 | 191209022_OAK_MIN |
| Christy Mathewson | SFN | 5.71 | 191209022_SFN_ATL |
| Nap Rucker | LAN | 4.16 | 191209022_LAN_PHI |
| Slim Sallee | SLN | 2.91 | 191208310_SLN_CHN |
| Smoky Joe Wood | BOS | 2.68 | 191209022_BOS_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Russ Ford | NYA | -3.89 | 191209021_BOS_NYA |
| King Cole | PIT | -2.73 | 191209012_PIT_CIN |
| Mack Allison | BAL | -2.22 | 191208310_BAL_DET |
| Carl Cashion | MIN | -1.74 | 191208310_NYA_MIN |
| Eddie Cicotte | CHA | -1.36 | 191208310_CHA_CLE |
Based on accumulated WAA for this season up to 1912-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.09 | Walter Johnson | 314.7 | MIN |
| +002+ | 10.94 | Christy Mathewson | 255 | SFN |
| +003+ | 9.56 | Nap Rucker | 242.3 | LAN |
| +005+ | 8.86 | Rube Marquard | 250.7 | SFN |
| +006+ | 8.48 | Slim Sallee | 262.7 | SLN |
| +007+ | 8.07 | Smoky Joe Wood | 294 | BOS |
| +010+ | 7.02 | Art Fromme | 236.7 | CIN |
| +012+ | 6.78 | Rube Benton | 247.7 | CIN |
| +015+ | 6.24 | Pete Alexander | 259 | PHI |
| +017+ | 5.93 | Ed Walsh | 330 | CHA |
| +018+ | 5.87 | Marty O'Toole | 230 | PIT |
| +019+ | 5.54 | Howie Camnitz | 233.3 | PIT |
| +020+ | 5.5 | Larry Cheney | 238 | CHN |
| +021+ | 5.37 | Lew Richie | 199.7 | CHN |
| +022+ | 5.25 | Eppa Rixey | 128.7 | PHI |
| +023+ | 5.24 | Jimmy Lavender | 214.3 | CHN |
| +025+ | 4.87 | Jeff Tesreau | 159.7 | SFN |
| +032+ | 4.02 | Red Ames | 141.3 | SFN |
| +036+ | 3.41 | Babe Adams | 135.3 | PIT |
| +039+ | 3.24 | Ray Collins | 146.3 | BOS |
| +041+ | 3.2 | Hooks Wiltse | 125.7 | SFN |
| +044+ | 3.11 | Eddie Plank | 210.7 | OAK |
| +056+ | 2.54 | Vean Gregg | 233 | CLE |
| +059+ | 2.52 | Rube Geyer | 145.7 | SLN |
| +061+ | 2.4 | Earl Moore | 159 | PHI |
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