| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 11.7 | 191505090_MIN_DET |
| Jeff Tesreau | SFN | 6.73 | 191505100_SFN_ATL |
| Pete Alexander | PHI | 2.99 | 191505110_PIT_PHI |
| Reb Russell | CHA | 1.65 | 191505090_CHA_BAL |
| Rube Foster | BOS | 1.63 | 191505100_BOS_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bullet Joe Bush | OAK | -3.53 | 191505090_OAK_CLE |
| Bob Harmon | PIT | -2.04 | 191505090_PIT_CIN |
| Harry Hoch | BAL | -1.56 | 191505110_OAK_BAL |
| Rube Benton | CIN | -0.84 | 191505110_CIN_SFN |
| Babe Ruth | BOS | -0.76 | 191505110_BOS_DET |
Based on accumulated WAA for this season up to 1915-05-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.53 | Pete Alexander | 62 | PHI |
| +003+ | 2.31 | Walter Johnson | 51.3 | MIN |
| +006+ | 1.67 | Guy Morton | 48 | CLE |
| +007+ | 1.44 | Erskine Mayer | 46 | PHI |
| +008+ | 1.44 | Jean Dubuc | 55.3 | DET |
| +011+ | 1.38 | Rube Foster | 40.7 | BOS |
| +012+ | 1.37 | Bernie Boland | 45 | DET |
| +013+ | 1.34 | Ray Fisher | 45 | NYA |
| +015+ | 1.31 | Reb Russell | 44.3 | CHA |
| +016+ | 1.27 | Bert Gallia | 36.3 | MIN |
| XXXXX | 1.15 | Sailor Stroud | 26 | SFN |
| XXXXX | 1.15 | Red Faber | 54.3 | CHA |
| XXXXX | 1.12 | Hooks Dauss | 53.7 | DET |
| XXXXX | 1.12 | Grover Lowdermilk | 62.7 | BAL |
| XXXXX | 1.1 | Dick Rudolph | 53 | ATL |
| XXXXX | 1.04 | Tom Hughes | 43 | ATL |
| XXXXX | 1.02 | Wheezer Dell | 48 | LAN |
| XXXXX | 1.02 | Jim Shaw | 20.7 | MIN |
| XXXXX | 0.97 | Jeff Tesreau | 35.7 | SFN |
| XXXXX | 0.91 | Ray Keating | 26 | NYA |
| XXXXX | 0.8 | Zip Zabel | 44.7 | CHN |
| XXXXX | 0.78 | George Chalmers | 27 | PHI |
| XXXXX | 0.78 | Bob Shawkey | 43 | OAK |
| XXXXX | 0.74 | Joe Benz | 29.7 | CHA |
| XXXXX | 0.71 | Eppa Rixey | 26 | PHI |
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