| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 13.03 | 191507032_MIN_NYA |
| Pete Alexander | PHI | 8.18 | 191507050_SFN_PHI |
| Jim Scott | CHA | 3.16 | 191507040_CHA_DET |
| Smoky Joe Wood | BOS | 1.82 | 191507032_OAK_BOS |
| Jeff Pfeffer | LAN | 1.75 | 191507050_ATL_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bullet Joe Bush | OAK | -3.39 | 191507051_OAK_NYA |
| Roy Walker | CLE | -2.01 | 191507031_CLE_BAL |
| Bill James | BAL | -1.61 | 191507051_CHA_BAL |
| Jack Warhop | NYA | -1.33 | 191507052_OAK_NYA |
| Ray Collins | BOS | -1.11 | 191507031_OAK_BOS |
Based on accumulated WAA for this season up to 1915-07-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 6.36 | Pete Alexander | 180 | PHI |
| +003+ | 5.86 | Walter Johnson | 155.3 | MIN |
| +007+ | 3.62 | Red Faber | 161.3 | CHA |
| +009+ | 3.48 | Erskine Mayer | 137.7 | PHI |
| +010+ | 3.39 | Smoky Joe Wood | 76.7 | BOS |
| +011+ | 3.37 | Bob Harmon | 124.7 | PIT |
| +012+ | 3.1 | Al Mamaux | 117.7 | PIT |
| +016+ | 2.81 | Hooks Dauss | 149.3 | DET |
| +019+ | 2.52 | Jeff Pfeffer | 118 | LAN |
| +021+ | 2.38 | Bert Humphries | 60 | CHN |
| +023+ | 2.17 | Jim Scott | 127.7 | CHA |
| +031+ | 1.87 | Sherry Smith | 77.3 | LAN |
| +032+ | 1.86 | Bert Gallia | 101.3 | MIN |
| +033+ | 1.86 | Sailor Stroud | 82 | SFN |
| +035+ | 1.79 | Jack Coombs | 82.3 | LAN |
| +040+ | 1.57 | Guy Morton | 141 | CLE |
| +041+ | 1.56 | Ray Fisher | 132.7 | NYA |
| +042+ | 1.52 | Gene Dale | 119.7 | CIN |
| +046+ | 1.46 | Joe Benz | 108 | CHA |
| +048+ | 1.43 | Rube Foster | 120 | BOS |
| +050+ | 1.39 | Fred Toney | 51.7 | CIN |
| +051+ | 1.39 | Pat Ragan | 99.7 | TOT |
| +052+ | 1.37 | Reb Russell | 97.3 | CHA |
| +053+ | 1.34 | Bill Doak | 143.3 | SLN |
| +055+ | 1.3 | Jean Dubuc | 155 | DET |
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