| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Walker | CLE | -2.01 | 191507031_CLE_BAL |
| Weldon Wyckoff | OAK | -1.71 | 191507032_OAK_BOS |
| Ray Collins | BOS | -1.11 | 191507031_OAK_BOS |
| Cy Pieh | NYA | -0.99 | 191507020_MIN_NYA |
| Grover Lowdermilk | BAL | -0.79 | 191507040_CLE_BAL |
Based on accumulated WAA for this season up to 1915-07-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.77 | Walter Johnson | 155.3 | MIN |
| +003+ | 5.75 | Pete Alexander | 171 | PHI |
| +008+ | 3.58 | Red Faber | 161.3 | CHA |
| +009+ | 3.48 | Erskine Mayer | 137.7 | PHI |
| +010+ | 3.36 | Smoky Joe Wood | 76.7 | BOS |
| +015+ | 2.81 | Hooks Dauss | 149.3 | DET |
| +016+ | 2.76 | Bob Harmon | 115.7 | PIT |
| +018+ | 2.48 | Al Mamaux | 108.7 | PIT |
| +019+ | 2.47 | Guy Morton | 139 | CLE |
| +020+ | 2.38 | Bert Humphries | 60 | CHN |
| +022+ | 2.14 | Jim Scott | 127.7 | CHA |
| +024+ | 2.12 | Jeff Pfeffer | 109 | LAN |
| +026+ | 1.97 | Harry Coveleski | 136.7 | DET |
| +030+ | 1.87 | Sherry Smith | 77.3 | LAN |
| +032+ | 1.85 | Sailor Stroud | 82 | SFN |
| +035+ | 1.8 | Bert Gallia | 101.3 | MIN |
| +036+ | 1.79 | Jack Coombs | 82.3 | LAN |
| +037+ | 1.73 | Joe Benz | 103 | CHA |
| +039+ | 1.65 | George Pierce | 83.3 | CHN |
| +045+ | 1.51 | Fred Toney | 50.3 | CIN |
| +046+ | 1.5 | Gene Dale | 119.7 | CIN |
| +047+ | 1.47 | Pete Schneider | 96 | CIN |
| +052+ | 1.39 | Pat Ragan | 99.7 | TOT |
| +053+ | 1.38 | Zip Zabel | 101 | CHN |
| +054+ | 1.35 | Reb Russell | 97.3 | CHA |
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