| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 15.61 | 191507132_MIN_BAL |
| Pete Alexander | PHI | 11.62 | 191507130_SLN_PHI |
| Jim Scott | CHA | 2.77 | 191507130_OAK_CHA |
| Al Mamaux | PIT | 2.34 | 191507122_PIT_PHI |
| Smoky Joe Wood | BOS | 2.22 | 191507141_BOS_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Walker | CLE | -2.72 | 191507131_BOS_CLE |
| Bullet Joe Bush | OAK | -2.09 | 191507140_OAK_CHA |
| Ray Collins | BOS | -1.76 | 191507142_BOS_CLE |
| Jack Warhop | NYA | -1.15 | 191507131_NYA_DET |
| Bill James | BAL | -0.99 | 191507131_MIN_BAL |
Based on accumulated WAA for this season up to 1915-07-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.43 | Pete Alexander | 198 | PHI |
| +003+ | 6.39 | Walter Johnson | 177.7 | MIN |
| +007+ | 4 | Al Mamaux | 135.7 | PIT |
| +011+ | 3.38 | Jim Scott | 145.7 | CHA |
| +013+ | 3.34 | Smoky Joe Wood | 93.7 | BOS |
| +015+ | 3.02 | Bob Harmon | 139.7 | PIT |
| +016+ | 3 | Erskine Mayer | 157.7 | PHI |
| +019+ | 2.76 | Red Faber | 183 | CHA |
| +024+ | 2.38 | Sherry Smith | 96 | LAN |
| +023+ | 2.38 | Jack Coombs | 96 | LAN |
| +030+ | 2.02 | Wheezer Dell | 147.7 | LAN |
| +031+ | 2 | Bert Humphries | 73.3 | CHN |
| +033+ | 1.98 | Gene Dale | 133.7 | CIN |
| +034+ | 1.96 | Guy Morton | 159 | CLE |
| +035+ | 1.93 | Bill Doak | 157.3 | SLN |
| +037+ | 1.86 | Hooks Dauss | 159.3 | DET |
| +038+ | 1.84 | Pat Ragan | 123.7 | TOT |
| +040+ | 1.82 | Fred Toney | 68.3 | CIN |
| +043+ | 1.69 | Sailor Stroud | 97.7 | SFN |
| +048+ | 1.62 | Eppa Rixey | 91.3 | PHI |
| +054+ | 1.5 | Jeff Pfeffer | 130.3 | LAN |
| +056+ | 1.49 | Ernie Shore | 103.7 | BOS |
| +057+ | 1.49 | Harry Coveleski | 160 | DET |
| +058+ | 1.47 | Hank Robinson | 78.3 | SLN |
| +059+ | 1.46 | Joe Benz | 114.3 | CHA |
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