| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 5.99 | 191508290_MIN_BAL |
| Jim Scott | CHA | 2.34 | 191508290_OAK_CHA |
| Guy Morton | CLE | 1.59 | 191508281_BOS_CLE |
| Ray Fisher | NYA | 1.46 | 191508282_NYA_DET |
| Harry Coveleski | DET | 1.33 | 191508282_NYA_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Shawkey | NYA | -2.72 | 191508290_NYA_DET |
| Hub Perdue | SLN | -1.54 | 191508270_SLN_LAN |
| Weldon Wyckoff | OAK | -1.25 | 191508270_OAK_CHA |
| Bill James | DET | -1.16 | 191508281_NYA_DET |
| Grover Lowdermilk | BAL | -0.99 | 191508270_MIN_BAL |
Based on accumulated WAA for this season up to 1915-08-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.53 | Pete Alexander | 292 | PHI |
| +004+ | 7.44 | Walter Johnson | 273.7 | MIN |
| +009+ | 5.2 | Jim Scott | 241 | CHA |
| +014+ | 4 | Al Mamaux | 205.7 | PIT |
| +015+ | 3.93 | Ernie Shore | 190 | BOS |
| +016+ | 3.8 | Harry Coveleski | 252.3 | DET |
| +019+ | 3.75 | Guy Morton | 228 | CLE |
| +021+ | 3.58 | Ray Fisher | 210.7 | NYA |
| +023+ | 3.3 | Bert Humphries | 124 | CHN |
| +024+ | 3.28 | Rube Foster | 202.7 | BOS |
| +025+ | 3.24 | Red Faber | 259.3 | CHA |
| +026+ | 3.13 | Fred Toney | 151 | CIN |
| +027+ | 3.12 | Jeff Tesreau | 232.7 | SFN |
| +029+ | 2.92 | Gene Dale | 226.7 | CIN |
| +033+ | 2.8 | Dick Rudolph | 264.3 | ATL |
| +034+ | 2.78 | Jack Coombs | 162 | LAN |
| +036+ | 2.75 | Hooks Dauss | 252.3 | DET |
| +037+ | 2.74 | Reb Russell | 174.3 | CHA |
| +038+ | 2.72 | Ernie Koob | 93.3 | BAL |
| +046+ | 2.41 | Bert Gallia | 201 | MIN |
| +045+ | 2.41 | Eppa Rixey | 153.7 | PHI |
| +053+ | 2.18 | Joe Benz | 175.3 | CHA |
| +054+ | 2.09 | Pat Ragan | 211 | TOT |
| +055+ | 2 | Bob Harmon | 219.7 | PIT |
| +059+ | 1.95 | Jeff Pfeffer | 197.7 | LAN |
_