| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 12.43 | 191506010_MIN_OAK |
| Jeff Tesreau | SFN | 5.13 | 191506020_SFN_ATL |
| Pete Alexander | PHI | 4.5 | 191506010_PHI_LAN |
| Joe Benz | CHA | 2.2 | 191506020_DET_CHA |
| Babe Adams | PIT | 2.12 | 191506010_CHN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hub Perdue | SLN | -4.72 | 191506030_CIN_SLN |
| Pat Ragan | ATL | -2.26 | 191506010_SFN_ATL |
| Weldon Wyckoff | OAK | -1.99 | 191506010_MIN_OAK |
| Bill James | BAL | -1.22 | 191506010_BAL_CLE |
| Babe Ruth | BOS | -1.12 | 191506020_BOS_NYA |
Based on accumulated WAA for this season up to 1915-06-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.91 | Walter Johnson | 95.3 | MIN |
| +004+ | 2.86 | Pete Alexander | 104 | PHI |
| +005+ | 2.68 | Wheezer Dell | 86 | LAN |
| +011+ | 2.09 | Red Faber | 99.3 | CHA |
| +010+ | 2.09 | Al Mamaux | 58.7 | PIT |
| +014+ | 1.8 | Tom Hughes | 79 | ATL |
| +016+ | 1.71 | Erskine Mayer | 84 | PHI |
| +018+ | 1.67 | Reb Russell | 73.7 | CHA |
| +019+ | 1.65 | Ray Fisher | 71.7 | NYA |
| +020+ | 1.63 | Harry Coveleski | 87.7 | DET |
| +022+ | 1.6 | Joe Benz | 63 | CHA |
| +026+ | 1.49 | Bert Humphries | 28.7 | CHN |
| +027+ | 1.45 | Jack Coombs | 49.3 | LAN |
| +029+ | 1.36 | Pete Schneider | 48 | CIN |
| +031+ | 1.3 | Jim Scott | 58.3 | CHA |
| +032+ | 1.26 | Smoky Joe Wood | 40 | BOS |
| XXXXX | 1.11 | Zip Zabel | 57.7 | CHN |
| XXXXX | 1.03 | Jean Dubuc | 94.7 | DET |
| XXXXX | 0.97 | Grover Lowdermilk | 103.3 | BAL |
| XXXXX | 0.95 | Rube Foster | 68.3 | BOS |
| XXXXX | 0.93 | George Chalmers | 54 | PHI |
| XXXXX | 0.92 | Sherry Smith | 35.3 | LAN |
| XXXXX | 0.88 | Jeff Tesreau | 74.7 | SFN |
| XXXXX | 0.83 | Earl Hamilton | 26 | BAL |
| XXXXX | 0.83 | Ray Keating | 50 | NYA |
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