| 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 |
| Nap Rucker | LAN | 0.6 | 191204190_LAN_SFN |
| Pete Alexander | PHI | 0.35 | 191204190_ATL_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Mattern | ATL | -2.17 | 191204190_ATL_PHI |
| Red Nelson | BAL | -1.2 | 191204180_CHA_BAL |
| Boardwalk Brown | OAK | -0.26 | 191204190_OAK_MIN |
| Hooks Wiltse | SFN | -0.07 | 191204170_SFN_ATL |
| Claude Hendrix | PIT | -0.02 | 191204180_SLN_PIT |
Based on accumulated WAA for this season up to 1912-04-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 1.73 | Walter Johnson | 26 | MIN |
| XXXXX | 1.18 | Christy Mathewson | 17 | SFN |
| XXXXX | 1.1 | Hub Perdue | 18 | ATL |
| XXXXX | 1.04 | Willie Mitchell | 16 | CLE |
| XXXXX | 1.02 | Slim Sallee | 20.7 | SLN |
| XXXXX | 0.97 | Rube Marquard | 15 | SFN |
| XXXXX | 0.96 | Hooks Wiltse | 9 | SFN |
| XXXXX | 0.86 | Larry Cheney | 9 | CHN |
| XXXXX | 0.86 | Tex Covington | 9 | DET |
| XXXXX | 0.83 | Ad Brennan | 17 | PHI |
| XXXXX | 0.69 | Smoky Joe Wood | 18 | BOS |
| XXXXX | 0.67 | George Baumgardner | 9 | BAL |
| XXXXX | 0.67 | Tom Seaton | 9 | PHI |
| XXXXX | 0.66 | Cy Morgan | 9 | OAK |
| XXXXX | 0.66 | Eddie Plank | 9 | OAK |
| XXXXX | 0.64 | Jack Quinn | 9 | NYA |
| XXXXX | 0.61 | George Kahler | 9 | CLE |
| XXXXX | 0.58 | Ed Willett | 17 | DET |
| XXXXX | 0.56 | Art Fromme | 11 | CIN |
| XXXXX | 0.53 | Jeff Tesreau | 7 | SFN |
| XXXXX | 0.51 | Babe Adams | 12 | PIT |
| XXXXX | 0.47 | Rube Benton | 10 | CIN |
| XXXXX | 0.45 | Jack Coombs | 9 | OAK |
| XXXXX | 0.45 | Buck O'Brien | 9 | BOS |
| XXXXX | 0.44 | Buster Brown | 9 | ATL |
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