| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pete Alexander | PHI | 14.8 | 191508211_CHN_PHI |
| Al Mamaux | PIT | 3 | 191508212_PIT_ATL |
| Jim Scott | CHA | 2.46 | 191508211_NYA_CHA |
| Ray Fisher | NYA | 1.36 | 191508212_NYA_CHA |
| Rube Foster | BOS | 1.28 | 191508190_BOS_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Bressler | OAK | -8.04 | 191508200_OAK_DET |
| Rube Marquard | SFN | -2.54 | 191508210_SLN_SFN |
| Red Ames | SLN | -2.47 | 191508190_SLN_ATL |
| Bill James | DET | -2.32 | 191508200_OAK_DET |
| Phil Douglas | LAN | -2.21 | 191508200_CHN_LAN |
Based on accumulated WAA for this season up to 1915-08-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10 | Pete Alexander | 282.3 | PHI |
| +005+ | 6.8 | Walter Johnson | 252.7 | MIN |
| +007+ | 5.13 | Al Mamaux | 197.3 | PIT |
| +009+ | 4.92 | Jim Scott | 222.7 | CHA |
| +010+ | 4.85 | Smoky Joe Wood | 141.3 | BOS |
| +016+ | 3.63 | Ray Fisher | 195.7 | NYA |
| +018+ | 3.34 | Rube Foster | 185.7 | BOS |
| +019+ | 3.28 | Ernie Shore | 172 | BOS |
| +021+ | 3.15 | Harry Coveleski | 233.3 | DET |
| +023+ | 3.02 | Bert Humphries | 115.3 | CHN |
| +025+ | 2.88 | Gene Dale | 213 | CIN |
| +027+ | 2.79 | Eppa Rixey | 149 | PHI |
| +037+ | 2.52 | Fred Toney | 135 | CIN |
| +038+ | 2.47 | Red Faber | 236.3 | CHA |
| +039+ | 2.46 | Joe Benz | 160.3 | CHA |
| +040+ | 2.45 | Jack Coombs | 153 | LAN |
| +041+ | 2.42 | Jeff Tesreau | 217.7 | SFN |
| +044+ | 2.35 | Reb Russell | 152.3 | CHA |
| +045+ | 2.33 | Wheezer Dell | 189.7 | LAN |
| +046+ | 2.3 | Bert Gallia | 183 | MIN |
| +048+ | 2.21 | Hooks Dauss | 225.3 | DET |
| +049+ | 2.2 | Bob Harmon | 203.7 | PIT |
| +050+ | 2.02 | Ernie Koob | 75.7 | BAL |
| +057+ | 1.85 | Dick Rudolph | 246.3 | ATL |
| +061+ | 1.71 | Tom Hughes | 196 | ATL |
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