| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 12.09 | 191506190_DET_MIN |
| Pete Alexander | PHI | 7.16 | 191506190_PHI_CIN |
| Jim Scott | CHA | 3.66 | 191506202_CHA_CLE |
| Jeff Tesreau | SFN | 1.38 | 191506190_SFN_PIT |
| Babe Adams | PIT | 1 | 191506210_PHI_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Babe Ruth | BOS | -1.76 | 191506211_BOS_MIN |
| Ray Keating | NYA | -1.23 | 191506211_NYA_OAK |
| Dick Crutcher | ATL | -0.89 | 191506200_ATL_SLN |
| Raleigh Aitchison | LAN | -0.69 | 191506200_LAN_CHN |
| Bob Shawkey | OAK | -0.57 | 191506212_NYA_OAK |
Based on accumulated WAA for this season up to 1915-06-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.87 | Pete Alexander | 144 | PHI |
| +003+ | 4.11 | Walter Johnson | 129.3 | MIN |
| +007+ | 3.26 | Jim Scott | 97.3 | CHA |
| +008+ | 3.06 | Erskine Mayer | 117.7 | PHI |
| +012+ | 2.39 | Smoky Joe Wood | 60 | BOS |
| +014+ | 2.24 | Bert Humphries | 46.3 | CHN |
| +016+ | 2.22 | Bob Harmon | 94 | PIT |
| +017+ | 2.19 | Al Mamaux | 96.7 | PIT |
| +018+ | 2.19 | Red Faber | 121.7 | CHA |
| +019+ | 2.07 | Joe Benz | 86 | CHA |
| +021+ | 1.96 | Hooks Dauss | 130.3 | DET |
| +022+ | 1.93 | Rube Foster | 95.3 | BOS |
| +024+ | 1.89 | Harry Coveleski | 116.7 | DET |
| +029+ | 1.75 | Guy Morton | 119 | CLE |
| +030+ | 1.68 | Wheezer Dell | 111 | LAN |
| +031+ | 1.62 | Reb Russell | 91.7 | CHA |
| +038+ | 1.35 | Jean Dubuc | 124.3 | DET |
| +039+ | 1.29 | Hank Robinson | 49.7 | SLN |
| +042+ | 1.25 | Sailor Stroud | 57 | SFN |
| XXXXX | 1.2 | Jeff Pfeffer | 91 | LAN |
| XXXXX | 1.17 | Bert Gallia | 77.7 | MIN |
| XXXXX | 1.08 | Ray Fisher | 107.7 | NYA |
| XXXXX | 1.07 | George Chalmers | 64.3 | PHI |
| XXXXX | 1.04 | Fred Toney | 20.3 | CIN |
| XXXXX | 1.03 | Ernie Shore | 81.3 | BOS |
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