| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 15.75 | 191507190_MIN_CLE |
| Smoky Joe Wood | BOS | 2.25 | 191507180_BOS_CHA |
| Erskine Mayer | PHI | 1.38 | 191507190_CHN_PHI |
| Red Faber | CHA | 0.9 | 191507180_BOS_CHA |
| Bert Humphries | CHN | 0.89 | 191507190_CHN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Walker | CLE | -2.25 | 191507200_MIN_CLE |
| Rube Bressler | OAK | -2.05 | 191507180_OAK_DET |
| Ray Collins | BOS | -1.52 | 191507190_BOS_CHA |
| Rube Marquard | SFN | -1.13 | 191507200_SLN_SFN |
| Rube Benton | CIN | -1 | 191507200_CIN_ATL |
Based on accumulated WAA for this season up to 1915-07-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.78 | Pete Alexander | 207.3 | PHI |
| +003+ | 7.18 | Walter Johnson | 193.7 | MIN |
| +009+ | 3.8 | Al Mamaux | 142.7 | PIT |
| +011+ | 3.52 | Smoky Joe Wood | 102.7 | BOS |
| +013+ | 3.35 | Jim Scott | 155 | CHA |
| +016+ | 3.16 | Bob Harmon | 148.7 | PIT |
| +017+ | 2.9 | Erskine Mayer | 166.3 | PHI |
| +020+ | 2.67 | Ray Fisher | 154.7 | NYA |
| +022+ | 2.59 | Red Faber | 190.3 | CHA |
| +027+ | 2.36 | Gene Dale | 141.7 | CIN |
| +029+ | 2.31 | Guy Morton | 172 | CLE |
| +031+ | 2.25 | Hooks Dauss | 168.7 | DET |
| +034+ | 2.08 | Bill Doak | 164.3 | SLN |
| +035+ | 2.06 | Ernie Shore | 121.7 | BOS |
| +038+ | 1.95 | Fred Toney | 76.3 | CIN |
| +039+ | 1.91 | Bert Humphries | 84.3 | CHN |
| +040+ | 1.9 | Sherry Smith | 101.3 | LAN |
| +041+ | 1.86 | Hank Robinson | 88 | SLN |
| +044+ | 1.82 | Sailor Stroud | 100.7 | SFN |
| +045+ | 1.81 | Rube Foster | 143 | BOS |
| +049+ | 1.71 | Reb Russell | 118.3 | CHA |
| +052+ | 1.68 | Joe Benz | 121 | CHA |
| +056+ | 1.59 | Dick Rudolph | 177.3 | ATL |
| +055+ | 1.59 | Pat Ragan | 133.7 | TOT |
| +063+ | 1.38 | Dan Griner | 126.7 | SLN |
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