| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jeff Tesreau | SFN | 4.59 | 191505140_CIN_SFN |
| Pete Alexander | PHI | 3.92 | 191505150_SLN_PHI |
| Reb Russell | CHA | 2.26 | 191505160_OAK_CHA |
| Rube Foster | BOS | 2.13 | 191505150_BOS_DET |
| Dick Rudolph | ATL | 1.25 | 191505150_PIT_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| George Chalmers | PHI | -2.07 | 191505140_PIT_PHI |
| Weldon Wyckoff | OAK | -1.54 | 191505150_OAK_BAL |
| Bill James | BAL | -1.37 | 191505150_OAK_BAL |
| King Lear | CIN | -0.85 | 191505140_CIN_SFN |
| Marty McHale | NYA | -0.38 | 191505160_NYA_DET |
Based on accumulated WAA for this season up to 1915-05-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.89 | Pete Alexander | 71 | PHI |
| +003+ | 2.2 | Walter Johnson | 59.3 | MIN |
| +005+ | 1.88 | Guy Morton | 62 | CLE |
| +007+ | 1.68 | Rube Foster | 49.7 | BOS |
| +008+ | 1.63 | Tom Hughes | 52 | ATL |
| +010+ | 1.6 | Wheezer Dell | 57 | LAN |
| +011+ | 1.55 | Erskine Mayer | 48 | PHI |
| +012+ | 1.52 | Red Faber | 63.3 | CHA |
| +015+ | 1.51 | Ray Fisher | 54 | NYA |
| +018+ | 1.38 | Bert Gallia | 41.3 | MIN |
| +019+ | 1.35 | Jeff Tesreau | 44.7 | SFN |
| +020+ | 1.32 | Jim Shaw | 31.3 | MIN |
| +023+ | 1.28 | Hooks Dauss | 62.7 | DET |
| XXXXX | 1.24 | George Chalmers | 34 | PHI |
| XXXXX | 1.19 | Bernie Boland | 52 | DET |
| XXXXX | 1.14 | Sailor Stroud | 26 | SFN |
| XXXXX | 1.11 | Grover Lowdermilk | 69.7 | BAL |
| XXXXX | 0.97 | Jean Dubuc | 64.3 | DET |
| XXXXX | 0.97 | Bob Shawkey | 52 | OAK |
| XXXXX | 0.95 | Smoky Joe Wood | 15 | BOS |
| XXXXX | 0.9 | Ray Keating | 26 | NYA |
| XXXXX | 0.89 | Hub Perdue | 44.7 | SLN |
| XXXXX | 0.87 | Reb Russell | 47.3 | CHA |
| XXXXX | 0.77 | Eppa Rixey | 27 | PHI |
| XXXXX | 0.7 | Carl Weilman | 73 | BAL |
_