| Starter | Tm | Tier | Game |
|---|---|---|---|
| Smoky Joe Wood | BOS | 2.2 | 191507270_CHA_BOS |
| Al Mamaux | PIT | 1.86 | 191507270_SFN_PIT |
| Ray Fisher | NYA | 1 | 191507270_DET_NYA |
| Erskine Mayer | PHI | 0.77 | 191507250_PHI_CIN |
| Gene Dale | CIN | 0.74 | 191507250_PHI_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Phil Douglas | LAN | -1.85 | 191507270_ATL_LAN |
| Roy Walker | CLE | -1.74 | 191507251_OAK_CLE |
| Bill James | BAL | -1.41 | 191507251_BOS_BAL |
| Rube Marquard | SFN | -1.28 | 191507270_SFN_PIT |
| Tom Knowlson | OAK | -0.7 | 191507251_OAK_CLE |
Based on accumulated WAA for this season up to 1915-07-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.71 | Pete Alexander | 221.7 | PHI |
| +003+ | 7.28 | Walter Johnson | 202.7 | MIN |
| +010+ | 4.07 | Al Mamaux | 159.7 | PIT |
| +011+ | 3.98 | Smoky Joe Wood | 114.7 | BOS |
| +012+ | 3.87 | Jim Scott | 164 | CHA |
| +016+ | 3.3 | Red Faber | 202.3 | CHA |
| +018+ | 2.95 | Bob Harmon | 155.7 | PIT |
| +017+ | 2.95 | Gene Dale | 160.7 | CIN |
| +022+ | 2.62 | Erskine Mayer | 181.3 | PHI |
| +025+ | 2.52 | Ray Fisher | 159.7 | NYA |
| +027+ | 2.41 | Guy Morton | 181 | CLE |
| +031+ | 2.3 | Pat Ragan | 145.7 | TOT |
| +035+ | 2.11 | Bert Gallia | 146 | MIN |
| +037+ | 2.01 | Fred Toney | 90.3 | CIN |
| +038+ | 1.99 | Ernie Shore | 129 | BOS |
| +040+ | 1.98 | Bert Humphries | 88.7 | CHN |
| +043+ | 1.8 | Eppa Rixey | 119.7 | PHI |
| +044+ | 1.76 | Wheezer Dell | 157.3 | LAN |
| +046+ | 1.66 | Hank Robinson | 94.7 | SLN |
| +048+ | 1.64 | Dick Rudolph | 189.3 | ATL |
| +050+ | 1.62 | Joe Benz | 121 | CHA |
| +052+ | 1.58 | Jack Coombs | 110 | LAN |
| +053+ | 1.56 | Reb Russell | 123.3 | CHA |
| +057+ | 1.51 | Pete Schneider | 148 | CIN |
| +061+ | 1.46 | Harry Coveleski | 183.3 | DET |
_