| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 11.63 | 191505170_MIN_BAL |
| 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 |
|---|---|---|---|
| Weldon Wyckoff | OAK | -1.54 | 191505150_OAK_BAL |
| Hub Perdue | SLN | -1.48 | 191505170_SLN_PHI |
| Bill James | BAL | -1.37 | 191505150_OAK_BAL |
| Rube Benton | CIN | -0.54 | 191505150_CIN_LAN |
| Marty McHale | NYA | -0.38 | 191505160_NYA_DET |
Based on accumulated WAA for this season up to 1915-05-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.89 | Pete Alexander | 71 | PHI |
| +003+ | 2.39 | Walter Johnson | 68.3 | MIN |
| +005+ | 1.88 | Guy Morton | 62 | CLE |
| +008+ | 1.68 | Rube Foster | 49.7 | BOS |
| +010+ | 1.63 | Tom Hughes | 52 | ATL |
| +012+ | 1.6 | Wheezer Dell | 57 | LAN |
| +013+ | 1.53 | Erskine Mayer | 57 | PHI |
| +014+ | 1.52 | Red Faber | 63.3 | CHA |
| +017+ | 1.5 | Ray Fisher | 54 | NYA |
| +019+ | 1.43 | Grover Lowdermilk | 77.7 | BAL |
| +021+ | 1.37 | Bert Gallia | 41.3 | MIN |
| +022+ | 1.35 | Jeff Tesreau | 44.7 | SFN |
| +023+ | 1.32 | Jim Shaw | 31.3 | MIN |
| +024+ | 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 | 0.99 | Bob Shawkey | 52 | OAK |
| XXXXX | 0.97 | Jean Dubuc | 64.3 | DET |
| XXXXX | 0.95 | Smoky Joe Wood | 15 | BOS |
| XXXXX | 0.93 | Jim Scott | 32.7 | CHA |
| XXXXX | 0.9 | Ray Keating | 26 | NYA |
| XXXXX | 0.87 | Reb Russell | 47.3 | CHA |
| XXXXX | 0.77 | Eppa Rixey | 27 | PHI |
| XXXXX | 0.7 | Carl Weilman | 73 | BAL |
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