| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jeff Tesreau | SFN | 6.73 | 191505100_SFN_ATL |
| Pete Alexander | PHI | 2.99 | 191505110_PIT_PHI |
| Rube Foster | BOS | 1.63 | 191505100_BOS_NYA |
| Jim Scott | CHA | 1.35 | 191505110_MIN_CHA |
| Bill James | ATL | 1.1 | 191505120_SLN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hub Perdue | SLN | -1.83 | 191505120_SLN_ATL |
| Harry Hoch | BAL | -1.56 | 191505110_OAK_BAL |
| Herb Pennock | OAK | -1.3 | 191505120_OAK_BAL |
| Rube Benton | CIN | -0.84 | 191505110_CIN_SFN |
| George McQuillan | PIT | -0.78 | 191505110_PIT_PHI |
Based on accumulated WAA for this season up to 1915-05-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.48 | Pete Alexander | 62 | PHI |
| +003+ | 2.29 | Walter Johnson | 51.3 | MIN |
| +006+ | 1.63 | Guy Morton | 48 | CLE |
| +008+ | 1.5 | Red Faber | 63.3 | CHA |
| +010+ | 1.41 | Erskine Mayer | 46 | PHI |
| +011+ | 1.4 | Jean Dubuc | 55.3 | DET |
| +012+ | 1.39 | Bert Gallia | 41.3 | MIN |
| +013+ | 1.36 | Rube Foster | 40.7 | BOS |
| +017+ | 1.33 | Bernie Boland | 45 | DET |
| +018+ | 1.31 | Ray Fisher | 45 | NYA |
| +019+ | 1.28 | Reb Russell | 44.3 | CHA |
| XXXXX | 1.13 | Sailor Stroud | 26 | SFN |
| XXXXX | 1.08 | Grover Lowdermilk | 62.7 | BAL |
| XXXXX | 1.08 | Hooks Dauss | 53.7 | DET |
| XXXXX | 1.05 | Dick Rudolph | 53 | ATL |
| XXXXX | 1.01 | Tom Hughes | 43 | ATL |
| XXXXX | 1.01 | Jim Shaw | 20.7 | MIN |
| XXXXX | 0.98 | Wheezer Dell | 48 | LAN |
| XXXXX | 0.95 | Jeff Tesreau | 35.7 | SFN |
| XXXXX | 0.89 | Ray Keating | 26 | NYA |
| XXXXX | 0.88 | Hub Perdue | 44.7 | SLN |
| XXXXX | 0.78 | Zip Zabel | 44.7 | CHN |
| XXXXX | 0.76 | George Chalmers | 27 | PHI |
| XXXXX | 0.76 | Bob Shawkey | 43 | OAK |
| XXXXX | 0.72 | Joe Benz | 29.7 | CHA |
_