| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pete Alexander | PHI | 18.22 | 191509191_PHI_SLN |
| Ernie Shore | BOS | 3.08 | 191509180_DET_BOS |
| Fred Toney | CIN | 2.51 | 191509200_ATL_CIN |
| Jeff Pfeffer | LAN | 1.24 | 191509200_LAN_PIT |
| Harry Coveleski | DET | 1.23 | 191509180_DET_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Karl Adams | CHN | -2.68 | 191509180_LAN_CHN |
| Red Ames | SLN | -2.16 | 191509192_PHI_SLN |
| Cap Crowell | OAK | -1.43 | 191509201_CLE_OAK |
| Christy Mathewson | SFN | -1.4 | 191509181_SFN_PIT |
| Boardwalk Brown | NYA | -1.32 | 191509200_CHA_NYA |
Based on accumulated WAA for this season up to 1915-09-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.69 | Pete Alexander | 357.3 | PHI |
| +003+ | 8.5 | Walter Johnson | 300.7 | MIN |
| +008+ | 6 | Ernie Shore | 228 | BOS |
| +011+ | 5.51 | Fred Toney | 203 | CIN |
| +015+ | 4.45 | Jim Scott | 269.3 | CHA |
| +021+ | 4.07 | Harry Coveleski | 291.3 | DET |
| +022+ | 3.96 | Jeff Pfeffer | 253.3 | LAN |
| +024+ | 3.88 | Dick Rudolph | 313.3 | ATL |
| +026+ | 3.7 | Guy Morton | 240 | CLE |
| +029+ | 3.14 | Rube Foster | 229.3 | BOS |
| +032+ | 3.04 | Bert Gallia | 239.7 | MIN |
| +033+ | 2.98 | Tom Hughes | 253.3 | ATL |
| +037+ | 2.91 | Gene Dale | 268 | CIN |
| +040+ | 2.77 | Joe Benz | 214.3 | CHA |
| +041+ | 2.76 | Erskine Mayer | 257 | PHI |
| +043+ | 2.62 | Hooks Dauss | 291.7 | DET |
| +049+ | 2.42 | Dutch Leonard | 162.3 | BOS |
| +051+ | 2.35 | Jeff Tesreau | 279.7 | SFN |
| +055+ | 2.25 | Bob Harmon | 263 | PIT |
| +061+ | 2.04 | Pete Schneider | 247.7 | CIN |
| +063+ | 1.99 | Harry Harper | 62.7 | MIN |
| +069+ | 1.8 | Pat Ragan | 238 | TOT |
| +071+ | 1.74 | Erv Kantlehner | 144 | PIT |
| +072+ | 1.73 | Reb Russell | 217.7 | CHA |
| +077+ | 1.54 | Sailor Stroud | 173 | SFN |
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