| Starter | Tm | Tier | Game |
|---|---|---|---|
| Russ Ford | NYA | -4.55 | 191209130_NYA_CHA |
| Boardwalk Brown | OAK | -1.83 | 191209130_OAK_CLE |
| Carl Cashion | MIN | -1.11 | 191209140_MIN_DET |
| Eddie Cicotte | CHA | -1.03 | 191209150_NYA_CHA |
| Earl Hamilton | BAL | -0.77 | 191209152_BOS_BAL |
Based on accumulated WAA for this season up to 1912-09-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.61 | Walter Johnson | 338.7 | MIN |
| +002+ | 12.24 | Christy Mathewson | 283 | SFN |
| +004+ | 9.33 | Nap Rucker | 259.3 | LAN |
| +005+ | 9.25 | Smoky Joe Wood | 319 | BOS |
| +006+ | 9.03 | Slim Sallee | 286.7 | SLN |
| +007+ | 8.84 | Rube Marquard | 275.7 | SFN |
| +008+ | 8.43 | Jeff Tesreau | 204.7 | SFN |
| +009+ | 8.12 | Claude Hendrix | 269.3 | PIT |
| +010+ | 7.84 | Art Fromme | 254.7 | CIN |
| +013+ | 6.72 | Rube Benton | 267.7 | CIN |
| +014+ | 6.56 | George Suggs | 261.3 | CIN |
| +017+ | 6.4 | Larry Cheney | 265 | CHN |
| +018+ | 6.28 | Ed Walsh | 353 | CHA |
| +020+ | 5.9 | Pete Alexander | 277 | PHI |
| +021+ | 5.56 | Marty O'Toole | 245.3 | PIT |
| +022+ | 5.37 | Red Ames | 159.7 | SFN |
| +027+ | 5.15 | Lew Richie | 225.7 | CHN |
| +035+ | 4.33 | Ray Collins | 164.3 | BOS |
| +044+ | 3.12 | Babe Adams | 152.3 | PIT |
| +048+ | 3.02 | Hooks Wiltse | 131.7 | SFN |
| +049+ | 2.9 | Rube Geyer | 162.3 | SLN |
| +054+ | 2.75 | Vean Gregg | 242 | CLE |
| +061+ | 2.35 | Earl Moore | 172 | PHI |
| +068+ | 2.09 | Hugh Bedient | 207 | BOS |
| +076+ | 1.69 | Walt Dickson | 167.7 | ATL |
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