| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 12.09 | 191506190_DET_MIN |
| Pete Alexander | PHI | 7.16 | 191506190_PHI_CIN |
| Eddie Cicotte | CHA | 3.17 | 191506190_CHA_OAK |
| Rube Foster | BOS | 1.51 | 191506180_BAL_BOS |
| Bert Humphries | CHN | 1.47 | 191506170_LAN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bullet Joe Bush | OAK | -3.89 | 191506180_CHA_OAK |
| Pol Perritt | SFN | -1.59 | 191506180_SFN_PIT |
| George McQuillan | PIT | -1.28 | 191506170_SFN_PIT |
| Parson Perryman | BAL | -1.23 | 191506170_BAL_BOS |
| Pat Ragan | ATL | -0.88 | 191506180_ATL_SLN |
Based on accumulated WAA for this season up to 1915-06-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.88 | Pete Alexander | 144 | PHI |
| +003+ | 4.1 | Walter Johnson | 129.3 | MIN |
| +007+ | 3.01 | Erskine Mayer | 110.7 | PHI |
| +010+ | 2.63 | Jim Scott | 88.3 | CHA |
| +012+ | 2.37 | Smoky Joe Wood | 60 | BOS |
| +013+ | 2.25 | Bob Harmon | 94 | PIT |
| +014+ | 2.23 | Bert Humphries | 46.3 | CHN |
| +017+ | 2.18 | Al Mamaux | 96 | PIT |
| +018+ | 2.16 | Red Faber | 121.7 | CHA |
| +022+ | 1.9 | Rube Foster | 95.3 | BOS |
| +023+ | 1.86 | Harry Coveleski | 116.7 | DET |
| +026+ | 1.8 | Guy Morton | 111 | CLE |
| +029+ | 1.65 | Joe Benz | 77 | CHA |
| +030+ | 1.63 | Wheezer Dell | 111 | LAN |
| +031+ | 1.59 | Reb Russell | 91.7 | CHA |
| +032+ | 1.54 | Hooks Dauss | 121.3 | DET |
| +036+ | 1.48 | Ernie Shore | 79 | BOS |
| +039+ | 1.32 | Jean Dubuc | 124.3 | DET |
| +040+ | 1.28 | Hank Robinson | 49.7 | SLN |
| XXXXX | 1.24 | Sailor Stroud | 57 | SFN |
| XXXXX | 1.16 | Jeff Pfeffer | 91 | LAN |
| XXXXX | 1.05 | George Chalmers | 64 | PHI |
| XXXXX | 1.04 | Ray Fisher | 107.7 | NYA |
| XXXXX | 1.03 | Fred Toney | 20.3 | CIN |
| XXXXX | 0.9 | Jim Shaw | 61.7 | MIN |
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