| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pete Alexander | PHI | 14.89 | 191507280_PHI_SLN |
| Walter Johnson | MIN | 13.14 | 191507290_CLE_MIN |
| Jim Scott | CHA | 3.35 | 191507280_CHA_BOS |
| Gene Dale | CIN | 0.81 | 191507291_ATL_CIN |
| Dutch Leonard | BOS | 0.56 | 191507300_DET_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Bressler | OAK | -5.03 | 191507290_BAL_OAK |
| Rube Benton | CIN | -1.68 | 191507292_ATL_CIN |
| Grover Lowdermilk | BAL | -1.43 | 191507280_BAL_OAK |
| Sad Sam Jones | CLE | -1.33 | 191507280_CLE_MIN |
| Jack Warhop | NYA | -1.28 | 191507290_DET_NYA |
Based on accumulated WAA for this season up to 1915-07-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.78 | Pete Alexander | 228.7 | PHI |
| +003+ | 7.94 | Walter Johnson | 212.7 | MIN |
| +007+ | 4.55 | Jim Scott | 174 | CHA |
| +011+ | 4.06 | Al Mamaux | 159.7 | PIT |
| +012+ | 3.89 | Smoky Joe Wood | 116.3 | BOS |
| +016+ | 3.3 | Red Faber | 202.3 | CHA |
| +017+ | 3.15 | Bob Harmon | 164.7 | PIT |
| +019+ | 3.03 | Erskine Mayer | 190.3 | PHI |
| +020+ | 2.85 | Guy Morton | 191 | CLE |
| +025+ | 2.59 | Bert Humphries | 97.7 | CHN |
| +028+ | 2.52 | Ray Fisher | 159.7 | NYA |
| +032+ | 2.31 | Ernie Shore | 137 | BOS |
| +035+ | 2.21 | Gene Dale | 165 | CIN |
| +034+ | 2.21 | Pat Ragan | 156.7 | TOT |
| +040+ | 2.09 | Bert Gallia | 146 | MIN |
| +041+ | 2.05 | Dick Rudolph | 198.3 | ATL |
| +044+ | 1.85 | Sailor Stroud | 111 | SFN |
| +046+ | 1.81 | Eppa Rixey | 119.7 | PHI |
| +049+ | 1.73 | Ernie Koob | 45 | BAL |
| +051+ | 1.66 | Pete Schneider | 159.7 | CIN |
| +052+ | 1.65 | Hank Robinson | 94.7 | SLN |
| +054+ | 1.62 | Joe Benz | 121 | CHA |
| +056+ | 1.61 | Harry Coveleski | 185.3 | DET |
| +060+ | 1.59 | Jack Coombs | 110 | LAN |
| +059+ | 1.59 | Carl Weilman | 204.3 | BAL |
_