| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 6.23 | 191509030_NYA_MIN |
| Jim Scott | CHA | 2.27 | 191509051_CLE_CHA |
| Al Mamaux | PIT | 1.51 | 191509030_CHN_PIT |
| Ernie Shore | BOS | 1.48 | 191509030_BOS_OAK |
| Harry Coveleski | DET | 1.39 | 191509052_DET_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Ames | SLN | -2.26 | 191509040_SLN_CIN |
| Phil Douglas | LAN | -1.5 | 191509030_LAN_ATL |
| Fritz Coumbe | CLE | -1.41 | 191509051_CLE_CHA |
| Boardwalk Brown | NYA | -1.31 | 191509040_NYA_MIN |
| Bullet Joe Bush | OAK | -1.1 | 191509040_BOS_OAK |
Based on accumulated WAA for this season up to 1915-09-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.12 | Pete Alexander | 309.3 | PHI |
| +004+ | 7.82 | Walter Johnson | 282.7 | MIN |
| +011+ | 4.58 | Jim Scott | 251.7 | CHA |
| +014+ | 4.24 | Ernie Shore | 196 | BOS |
| +015+ | 4.24 | Al Mamaux | 220.7 | PIT |
| +017+ | 4.08 | Harry Coveleski | 271.3 | DET |
| +020+ | 3.78 | Rube Foster | 211.7 | BOS |
| +022+ | 3.67 | Fred Toney | 160 | CIN |
| +024+ | 3.52 | Ray Fisher | 221 | NYA |
| +027+ | 3.39 | Guy Morton | 233 | CLE |
| +028+ | 3.26 | Gene Dale | 242.7 | CIN |
| +029+ | 3.18 | Jeff Tesreau | 241.7 | SFN |
| +035+ | 2.74 | Bert Humphries | 126 | CHN |
| +037+ | 2.74 | Hooks Dauss | 260.3 | DET |
| +039+ | 2.72 | Dick Rudolph | 274.3 | ATL |
| +041+ | 2.59 | Red Faber | 266.3 | CHA |
| +048+ | 2.38 | Joe Benz | 188.7 | CHA |
| +049+ | 2.38 | Ernie Koob | 108.3 | BAL |
| +051+ | 2.29 | Bert Gallia | 211 | MIN |
| +052+ | 2.27 | Jeff Pfeffer | 206.7 | LAN |
| +053+ | 2.25 | Jimmy Lavender | 173.3 | CHN |
| +055+ | 2.24 | Tom Hughes | 214.7 | ATL |
| +062+ | 1.9 | Pat Ragan | 219 | TOT |
| +063+ | 1.88 | Reb Russell | 190.7 | CHA |
| +064+ | 1.84 | Pete Schneider | 220.3 | CIN |
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