| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 8.87 | 191209060_MIN_BOS |
| Rube Marquard | SFN | 3.64 | 191209062_SFN_PHI |
| Smoky Joe Wood | BOS | 2.89 | 191209060_MIN_BOS |
| Art Fromme | CIN | 2.02 | 191209060_CHN_CIN |
| Marty O'Toole | PIT | 1.46 | 191209080_PIT_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Russ Ford | NYA | -3.74 | 191209070_OAK_NYA |
| Elmer Knetzer | LAN | -2.01 | 191209072_ATL_LAN |
| Mack Allison | BAL | -1.68 | 191209070_BAL_DET |
| Ed Willett | DET | -1.15 | 191209080_BAL_DET |
| Willie Mitchell | CLE | -1.08 | 191209080_CLE_CHA |
Based on accumulated WAA for this season up to 1912-09-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.51 | Walter Johnson | 322.7 | MIN |
| +002+ | 11.45 | Christy Mathewson | 266 | SFN |
| +005+ | 9.18 | Slim Sallee | 271.7 | SLN |
| +006+ | 8.73 | Smoky Joe Wood | 303 | BOS |
| +007+ | 8.53 | Rube Marquard | 261.7 | SFN |
| +008+ | 8.07 | Claude Hendrix | 260.3 | PIT |
| +010+ | 7.12 | Art Fromme | 245.7 | CIN |
| +013+ | 6.68 | George Suggs | 252.3 | CIN |
| +015+ | 6.31 | Rube Benton | 259.7 | CIN |
| +016+ | 6.26 | Jeff Tesreau | 177.7 | SFN |
| +017+ | 6.07 | Pete Alexander | 268 | PHI |
| +018+ | 5.88 | Larry Cheney | 247 | CHN |
| +019+ | 5.71 | Marty O'Toole | 236.3 | PIT |
| +021+ | 5.61 | Ed Walsh | 344 | CHA |
| +022+ | 5.52 | Lew Richie | 217.7 | CHN |
| +023+ | 5.45 | Red Ames | 159.7 | SFN |
| +024+ | 5.3 | Eppa Rixey | 134.7 | PHI |
| +026+ | 5.08 | Hank Robinson | 150 | PIT |
| +027+ | 4.98 | Jimmy Lavender | 223.3 | CHN |
| +037+ | 3.66 | Eddie Plank | 222 | OAK |
| +039+ | 3.56 | Ray Collins | 155.3 | BOS |
| +051+ | 2.71 | Hooks Wiltse | 127.7 | SFN |
| +060+ | 2.39 | Vean Gregg | 233 | CLE |
| +065+ | 2.16 | Hub Perdue | 224.3 | ATL |
| +069+ | 1.88 | Tom Seaton | 211.3 | PHI |
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