| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jeff Tesreau | SFN | 5.13 | 191506020_SFN_ATL |
| Jim Scott | CHA | 2.26 | 191506040_CHA_BOS |
| Ray Caldwell | NYA | 1.21 | 191506040_DET_NYA |
| Jeff Pfeffer | LAN | 0.82 | 191506040_LAN_PIT |
| Bill James | ATL | 0.74 | 191506030_SFN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bullet Joe Bush | OAK | -5.49 | 191506040_BAL_OAK |
| Hub Perdue | SLN | -4.72 | 191506030_CIN_SLN |
| Babe Ruth | BOS | -1.12 | 191506020_BOS_NYA |
| Ed Appleton | LAN | -1.05 | 191506030_PHI_LAN |
| Dick Crutcher | ATL | -0.94 | 191506020_SFN_ATL |
Based on accumulated WAA for this season up to 1915-06-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.87 | Walter Johnson | 95.3 | MIN |
| +004+ | 2.82 | Pete Alexander | 104 | PHI |
| +005+ | 2.64 | Wheezer Dell | 86 | LAN |
| +010+ | 2.06 | Al Mamaux | 58.7 | PIT |
| +011+ | 2.05 | Red Faber | 99.3 | CHA |
| +012+ | 1.86 | Jim Scott | 67.3 | CHA |
| +015+ | 1.77 | Tom Hughes | 79 | ATL |
| +018+ | 1.71 | Dan Griner | 63.3 | SLN |
| +019+ | 1.68 | Erskine Mayer | 84 | PHI |
| +021+ | 1.64 | Reb Russell | 73.7 | CHA |
| +022+ | 1.62 | Ray Fisher | 71.7 | NYA |
| +023+ | 1.6 | Harry Coveleski | 87.7 | DET |
| +024+ | 1.58 | Joe Benz | 63 | CHA |
| +025+ | 1.58 | Jean Dubuc | 103.7 | DET |
| +029+ | 1.48 | Bert Humphries | 28.7 | CHN |
| +030+ | 1.43 | Jack Coombs | 49.3 | LAN |
| +032+ | 1.36 | Pete Schneider | 48 | CIN |
| +033+ | 1.25 | Smoky Joe Wood | 40 | BOS |
| XXXXX | 1.11 | Jim Shaw | 50.7 | MIN |
| XXXXX | 1.09 | Zip Zabel | 57.7 | CHN |
| XXXXX | 0.97 | Ernie Shore | 65.7 | BOS |
| XXXXX | 0.96 | Grover Lowdermilk | 103.3 | BAL |
| XXXXX | 0.93 | Rube Foster | 68.3 | BOS |
| XXXXX | 0.91 | Sherry Smith | 35.3 | LAN |
| XXXXX | 0.91 | George Chalmers | 54 | PHI |
_