| Starter | Tm | Tier | Game |
|---|---|---|---|
| Smoky Joe Wood | BOS | 4.19 | 191204230_MIN_BOS |
| Cy Morgan | OAK | 4.09 | 191204230_OAK_NYA |
| Ed Walsh | CHA | 3.65 | 191204230_CHA_CLE |
| Babe Adams | PIT | 2.95 | 191204230_PIT_CHN |
| Mordecai Brown | CHN | 2.11 | 191204230_PIT_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Tyler | ATL | -1.37 | 191204230_ATL_LAN |
| Bill Steele | SLN | -1.27 | 191204210_SLN_CIN |
| Bill Bailey | BAL | -1.24 | 191204220_DET_BAL |
| Bill Burns | DET | -1.15 | 191204210_CLE_DET |
| Bob Groom | MIN | -0.61 | 191204230_MIN_BOS |
Based on accumulated WAA for this season up to 1912-04-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 1.69 | George Baumgardner | 24 | BAL |
| +002+ | 1.66 | Hub Perdue | 27 | ATL |
| +003+ | 1.61 | Larry Cheney | 18 | CHN |
| +004+ | 1.59 | Walter Johnson | 26 | MIN |
| +005+ | 1.41 | George Kahler | 19 | CLE |
| +006+ | 1.31 | Maury Kent | 17.7 | LAN |
| XXXXX | 1.19 | Jim Scott | 29.7 | CHA |
| XXXXX | 1.11 | Art Fromme | 20 | CIN |
| XXXXX | 1.08 | Jeff Tesreau | 15 | SFN |
| XXXXX | 1.07 | Christy Mathewson | 17 | SFN |
| XXXXX | 1.03 | Cy Morgan | 20 | OAK |
| XXXXX | 0.97 | Rube Marquard | 16 | SFN |
| XXXXX | 0.9 | Hooks Wiltse | 9 | SFN |
| XXXXX | 0.81 | Tex Covington | 9 | DET |
| XXXXX | 0.75 | Ad Brennan | 17 | PHI |
| XXXXX | 0.71 | Curly Brown | 9 | BAL |
| XXXXX | 0.67 | Babe Adams | 21 | PIT |
| XXXXX | 0.65 | Rube Benton | 22 | CIN |
| XXXXX | 0.63 | Tom Seaton | 18 | PHI |
| XXXXX | 0.63 | Bob Groom | 18 | MIN |
| XXXXX | 0.63 | Eddie Plank | 9 | OAK |
| XXXXX | 0.58 | Eddie Stack | 8 | LAN |
| XXXXX | 0.57 | Lew Richie | 11 | CHN |
| XXXXX | 0.41 | Buster Brown | 9 | ATL |
| XXXXX | 0.41 | Marty O'Toole | 9 | PIT |
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