| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pete Alexander | PHI | 13.37 | 191508050_PHI_PIT |
| Walter Johnson | MIN | 13.34 | 191508061_CHA_MIN |
| Jim Scott | CHA | 4.09 | 191508070_CHA_MIN |
| Smoky Joe Wood | BOS | 1.91 | 191508071_CLE_BOS |
| Al Mamaux | PIT | 1.71 | 191508071_PHI_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Bressler | OAK | -5.36 | 191508051_DET_OAK |
| Jack Warhop | NYA | -2.21 | 191508072_BAL_NYA |
| Bill James | BAL | -2.1 | 191508072_BAL_NYA |
| Rube Benton | CIN | -1.69 | 191508051_SFN_CIN |
| Roy Walker | CLE | -1.02 | 191508072_CLE_BOS |
Based on accumulated WAA for this season up to 1915-08-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.67 | Pete Alexander | 246.7 | PHI |
| +003+ | 8.35 | Walter Johnson | 230.7 | MIN |
| +007+ | 5.21 | Jim Scott | 191 | CHA |
| +009+ | 4.47 | Al Mamaux | 180.3 | PIT |
| +010+ | 4.42 | Smoky Joe Wood | 125.3 | BOS |
| +016+ | 3.08 | Gene Dale | 183 | CIN |
| +017+ | 3.01 | Guy Morton | 198 | CLE |
| +019+ | 2.87 | Ray Fisher | 168.7 | NYA |
| +026+ | 2.62 | Ernie Shore | 146 | BOS |
| +025+ | 2.62 | Red Faber | 212 | CHA |
| +029+ | 2.48 | Bert Humphries | 100.3 | CHN |
| +030+ | 2.43 | Harry Coveleski | 208.3 | DET |
| +031+ | 2.42 | Eppa Rixey | 132.7 | PHI |
| +032+ | 2.4 | Bob Harmon | 177.7 | PIT |
| +042+ | 2.06 | Ernie Koob | 57.3 | BAL |
| +044+ | 2.01 | Erskine Mayer | 198.3 | PHI |
| +045+ | 1.96 | Sailor Stroud | 120 | SFN |
| +046+ | 1.95 | Joe Benz | 136 | CHA |
| +048+ | 1.87 | Jeff Tesreau | 195.7 | SFN |
| +050+ | 1.82 | Rube Foster | 162.7 | BOS |
| +052+ | 1.7 | Jack Coombs | 128 | LAN |
| +054+ | 1.65 | Sherry Smith | 117.7 | LAN |
| +057+ | 1.55 | Hank Robinson | 103.7 | SLN |
| +058+ | 1.55 | Wheezer Dell | 170.3 | LAN |
| +061+ | 1.54 | Pat Ragan | 169.7 | TOT |
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