| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Caldwell | NYA | -1.5 | 191209150_NYA_CHA |
| Carl Cashion | MIN | -1.11 | 191209140_MIN_DET |
| Eddie Cicotte | CHA | -1.03 | 191209150_NYA_CHA |
| Willie Mitchell | CLE | -0.81 | 191209160_OAK_CLE |
| Lefty Tyler | ATL | -0.77 | 191209160_SLN_ATL |
Based on accumulated WAA for this season up to 1912-09-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.54 | Walter Johnson | 338.7 | MIN |
| +002+ | 12.37 | Christy Mathewson | 292 | SFN |
| +004+ | 9.27 | Nap Rucker | 259.3 | LAN |
| +005+ | 9.18 | Smoky Joe Wood | 319 | BOS |
| +006+ | 8.99 | Slim Sallee | 286.7 | SLN |
| +007+ | 8.78 | Rube Marquard | 275.7 | SFN |
| +008+ | 8.61 | Art Fromme | 263.7 | CIN |
| +009+ | 8.39 | Jeff Tesreau | 204.7 | SFN |
| +010+ | 8.07 | Claude Hendrix | 269.3 | PIT |
| +012+ | 7.49 | Rube Benton | 276.7 | CIN |
| +014+ | 6.5 | George Suggs | 261.3 | CIN |
| +017+ | 6.36 | Pete Alexander | 285 | PHI |
| +018+ | 6.35 | Larry Cheney | 265 | CHN |
| +019+ | 6.21 | Ed Walsh | 353 | CHA |
| +021+ | 5.87 | Hank Robinson | 160 | PIT |
| +023+ | 5.51 | Marty O'Toole | 245.3 | PIT |
| +024+ | 5.33 | Red Ames | 159.7 | SFN |
| +026+ | 5.17 | Eppa Rixey | 139 | PHI |
| +028+ | 5.1 | Lew Richie | 225.7 | CHN |
| +031+ | 4.89 | Jimmy Lavender | 230.3 | CHN |
| +035+ | 4.29 | Ray Collins | 164.3 | BOS |
| +037+ | 4.08 | Eddie Plank | 231.7 | OAK |
| +046+ | 2.99 | Hooks Wiltse | 131.7 | SFN |
| +050+ | 2.87 | Rube Geyer | 162.3 | SLN |
| +055+ | 2.69 | Vean Gregg | 242 | CLE |
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