| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 6.36 | 191204190_OAK_MIN |
| Christy Mathewson | SFN | 5.48 | 191204190_LAN_SFN |
| Ed Walsh | CHA | 5.19 | 191204180_CHA_BAL |
| Lew Richie | CHN | 0.76 | 191204200_CIN_CHN |
| Vean Gregg | CLE | 0.66 | 191204200_CLE_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Mattern | ATL | -2.17 | 191204190_ATL_PHI |
| Eddie Stack | LAN | -1.49 | 191204200_LAN_SFN |
| Red Nelson | BAL | -1.2 | 191204180_CHA_BAL |
| Howie Camnitz | PIT | -0.88 | 191204200_SLN_PIT |
| Bob Harmon | SLN | -0.76 | 191204200_SLN_PIT |
Based on accumulated WAA for this season up to 1912-04-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 1.69 | Hub Perdue | 27 | ATL |
| +002+ | 1.65 | Walter Johnson | 26 | MIN |
| +003+ | 1.63 | George Baumgardner | 24 | BAL |
| XXXXX | 1.13 | Jim Scott | 29.7 | CHA |
| XXXXX | 1.11 | Christy Mathewson | 17 | SFN |
| XXXXX | 1.11 | Jeff Tesreau | 15 | SFN |
| XXXXX | 1.02 | Slim Sallee | 20.7 | SLN |
| XXXXX | 1.01 | Rube Marquard | 16 | SFN |
| XXXXX | 0.92 | Hooks Wiltse | 9 | SFN |
| XXXXX | 0.92 | Cy Morgan | 12 | OAK |
| XXXXX | 0.82 | Larry Cheney | 9 | CHN |
| XXXXX | 0.81 | Tex Covington | 9 | DET |
| XXXXX | 0.78 | Ad Brennan | 17 | PHI |
| XXXXX | 0.67 | Tom Seaton | 18 | PHI |
| XXXXX | 0.64 | Eddie Plank | 9 | OAK |
| XXXXX | 0.6 | Eddie Stack | 8 | LAN |
| XXXXX | 0.58 | Smoky Joe Wood | 18 | BOS |
| XXXXX | 0.58 | Lew Richie | 11 | CHN |
| XXXXX | 0.57 | George Kahler | 9 | CLE |
| XXXXX | 0.54 | Art Fromme | 11 | CIN |
| XXXXX | 0.49 | Ed Willett | 17 | DET |
| XXXXX | 0.48 | Babe Adams | 12 | PIT |
| XXXXX | 0.42 | Buster Brown | 9 | ATL |
| XXXXX | 0.41 | Marty O'Toole | 9 | PIT |
| XXXXX | 0.4 | Elmer Knetzer | 14.3 | LAN |
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