| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Marquard | SFN | 2.85 | 191210010_PHI_SFN |
| Pete Alexander | PHI | 2.65 | 191209300_PHI_SFN |
| Art Fromme | CIN | 2.51 | 191209300_CIN_SLN |
| Claude Hendrix | PIT | 2.39 | 191209300_PIT_CHN |
| Larry Cheney | CHN | 2.37 | 191209300_PIT_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Lake | DET | -2.76 | 191209290_DET_CLE |
| Ray Caldwell | NYA | -1.7 | 191209300_NYA_OAK |
| George Baumgardner | BAL | -0.37 | 191209290_BAL_CHA |
| Buster Brown | ATL | -0.24 | 191209300_LAN_ATL |
| Joe Engel | MIN | -0.22 | 191209300_BOS_MIN |
Based on accumulated WAA for this season up to 1912-10-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 14.48 | Walter Johnson | 360.3 | MIN |
| +003+ | 11.4 | Nap Rucker | 286.3 | LAN |
| +005+ | 10.35 | Jeff Tesreau | 235.7 | SFN |
| +006+ | 9.87 | Smoky Joe Wood | 336 | BOS |
| +008+ | 8.44 | Rube Marquard | 289 | SFN |
| +010+ | 8.31 | Claude Hendrix | 288.3 | PIT |
| +011+ | 8.22 | Ed Walsh | 381.7 | CHA |
| +012+ | 8.09 | Pete Alexander | 310 | PHI |
| +013+ | 8.02 | Art Fromme | 290.7 | CIN |
| +014+ | 7.84 | Marty O'Toole | 271.3 | PIT |
| +017+ | 7.11 | Larry Cheney | 298.3 | CHN |
| +019+ | 6.86 | George Suggs | 298.7 | CIN |
| +020+ | 6.64 | Howie Camnitz | 267.3 | PIT |
| +025+ | 5.89 | Rube Benton | 292.7 | CIN |
| +027+ | 5.71 | Eppa Rixey | 156 | PHI |
| +031+ | 5.27 | Lew Richie | 238.7 | CHN |
| +034+ | 4.91 | Eddie Plank | 259.7 | OAK |
| +035+ | 4.65 | Ray Collins | 191.3 | BOS |
| +038+ | 4.27 | Vean Gregg | 271 | CLE |
| +043+ | 3.56 | Babe Adams | 169.3 | PIT |
| +059+ | 2.64 | Earl Moore | 182 | PHI |
| +076+ | 1.87 | Buck O'Brien | 266.7 | BOS |
| +078+ | 1.73 | Sandy Burk | 53 | TOT |
| +079+ | 1.71 | Eddie Stack | 138.7 | LAN |
| +080+ | 1.69 | Wilbur Cooper | 33 | PIT |
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