| Starter | Tm | Tier | Game |
|---|---|---|---|
| Earl Hamilton | BAL | -1.99 | 191208080_MIN_BAL |
| Russ Ford | NYA | -1.88 | 191208080_NYA_CLE |
| Willie Mitchell | CLE | -1.64 | 191208070_BOS_CLE |
| Ed Willett | DET | -1.45 | 191208060_NYA_DET |
| Bob Groom | MIN | -1.14 | 191208060_MIN_CHA |
Based on accumulated WAA for this season up to 1912-08-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.03 | Walter Johnson | 254.7 | MIN |
| +002+ | 9.7 | Christy Mathewson | 209.7 | SFN |
| +003+ | 9.17 | Rube Marquard | 213 | SFN |
| +004+ | 8.65 | Nap Rucker | 200.7 | LAN |
| +005+ | 8.34 | Claude Hendrix | 217.7 | PIT |
| +008+ | 7.46 | Slim Sallee | 218 | SLN |
| +007+ | 7.46 | Marty O'Toole | 199 | PIT |
| +010+ | 6.01 | Ed Walsh | 269.3 | CHA |
| +011+ | 5.73 | Jimmy Lavender | 172 | CHN |
| +012+ | 5.73 | Rube Benton | 206 | CIN |
| +015+ | 5.24 | Smoky Joe Wood | 237 | BOS |
| +016+ | 4.74 | Lew Richie | 161.3 | CHN |
| +017+ | 4.69 | Pete Alexander | 202.7 | PHI |
| +019+ | 4.17 | Larry Cheney | 198 | CHN |
| +023+ | 3.87 | George Suggs | 188.7 | CIN |
| +025+ | 3.66 | Jeff Tesreau | 116.7 | SFN |
| +026+ | 3.63 | Art Fromme | 181.7 | CIN |
| +032+ | 3.35 | Bert Humphries | 128 | CIN |
| +033+ | 3.29 | Howie Camnitz | 185.7 | PIT |
| +034+ | 3.26 | Ad Brennan | 168 | PHI |
| +036+ | 3.11 | Lefty Leifield | 78.7 | TOT |
| +038+ | 3.01 | Vean Gregg | 174 | CLE |
| +039+ | 2.96 | Eppa Rixey | 72.7 | PHI |
| +040+ | 2.89 | Jean Dubuc | 192.7 | DET |
| +042+ | 2.76 | Chief Bender | 137 | OAK |
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