| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 13.14 | 191507290_CLE_MIN |
| Al Mamaux | PIT | 2.08 | 191507311_LAN_PIT |
| Erskine Mayer | PHI | 0.82 | 191507290_PHI_SLN |
| Gene Dale | CIN | 0.81 | 191507291_ATL_CIN |
| Dick Rudolph | ATL | 0.73 | 191507310_ATL_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Bressler | OAK | -5.03 | 191507290_BAL_OAK |
| Hub Perdue | SLN | -2.17 | 191507312_PHI_SLN |
| Rube Benton | CIN | -1.68 | 191507292_ATL_CIN |
| Jack Warhop | NYA | -1.28 | 191507290_DET_NYA |
| Roy Walker | CLE | -1.04 | 191507290_CLE_MIN |
Based on accumulated WAA for this season up to 1915-07-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.79 | Pete Alexander | 229 | PHI |
| +003+ | 7.92 | Walter Johnson | 212.7 | MIN |
| +007+ | 4.65 | Al Mamaux | 168.7 | PIT |
| +008+ | 4.55 | Jim Scott | 174 | CHA |
| +012+ | 3.88 | Smoky Joe Wood | 116.3 | BOS |
| +016+ | 3.3 | Red Faber | 202.3 | CHA |
| +017+ | 3.12 | Bob Harmon | 164.7 | PIT |
| +019+ | 3.02 | Erskine Mayer | 190.3 | PHI |
| +020+ | 2.85 | Guy Morton | 191 | CLE |
| +021+ | 2.78 | Gene Dale | 174 | CIN |
| +026+ | 2.58 | Bert Humphries | 97.7 | CHN |
| +027+ | 2.51 | Ray Fisher | 159.7 | NYA |
| +029+ | 2.42 | Eppa Rixey | 128.7 | PHI |
| +032+ | 2.3 | Ernie Shore | 137 | BOS |
| +036+ | 2.21 | Pat Ragan | 156.7 | TOT |
| +043+ | 1.94 | Joe Benz | 129 | CHA |
| +045+ | 1.92 | Sherry Smith | 115 | LAN |
| +044+ | 1.92 | Bert Gallia | 153 | MIN |
| +046+ | 1.89 | Rube Foster | 162.7 | BOS |
| +048+ | 1.85 | Hank Robinson | 100.7 | SLN |
| +047+ | 1.85 | Sailor Stroud | 111 | SFN |
| +051+ | 1.72 | Ernie Koob | 45 | BAL |
| +054+ | 1.65 | Pete Schneider | 159.7 | CIN |
| +059+ | 1.59 | Jack Coombs | 110 | LAN |
| +058+ | 1.59 | Harry Coveleski | 191.3 | DET |
_