| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 10.44 | 191505230_MIN_CLE |
| Bill James | ATL | 2.18 | 191505240_CHN_ATL |
| Ray Caldwell | NYA | 1.85 | 191505230_NYA_BAL |
| Jim Scott | CHA | 1.7 | 191505230_BOS_CHA |
| Rube Foster | BOS | 1.25 | 191505240_BOS_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Herb Pennock | OAK | -2.87 | 191505230_OAK_DET |
| Cy Pieh | NYA | -1.31 | 191505240_NYA_CHA |
| Bill James | BAL | -0.98 | 191505220_NYA_BAL |
| Babe Ruth | BOS | -0.87 | 191505220_BOS_CHA |
| Jean Dubuc | DET | -0.29 | 191505220_OAK_DET |
Based on accumulated WAA for this season up to 1915-05-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.77 | Walter Johnson | 77.3 | MIN |
| +004+ | 2.66 | Pete Alexander | 80 | PHI |
| +006+ | 2 | Wheezer Dell | 66 | LAN |
| +007+ | 1.88 | Grover Lowdermilk | 93.7 | BAL |
| +010+ | 1.82 | Red Faber | 82.3 | CHA |
| +011+ | 1.8 | Jim Shaw | 38.7 | MIN |
| +012+ | 1.74 | Guy Morton | 70 | CLE |
| +014+ | 1.69 | Jeff Tesreau | 52.7 | SFN |
| +015+ | 1.64 | George Chalmers | 43 | PHI |
| +016+ | 1.61 | Tom Hughes | 61 | ATL |
| +018+ | 1.54 | Harry Coveleski | 69.7 | DET |
| +020+ | 1.53 | Erskine Mayer | 57 | PHI |
| +021+ | 1.49 | Sailor Stroud | 34.3 | SFN |
| +024+ | 1.37 | Jean Dubuc | 73.3 | DET |
| +025+ | 1.36 | Bert Gallia | 41.3 | MIN |
| +026+ | 1.31 | Ray Fisher | 62.7 | NYA |
| +027+ | 1.31 | Jack Coombs | 31.3 | LAN |
| +028+ | 1.25 | Dan Griner | 44 | SLN |
| XXXXX | 1.17 | Joe Benz | 46.7 | CHA |
| XXXXX | 1.12 | Reb Russell | 62 | CHA |
| XXXXX | 1.1 | Jim Scott | 45.7 | CHA |
| XXXXX | 0.92 | Al Mamaux | 40.7 | PIT |
| XXXXX | 0.84 | Bert Humphries | 12.7 | CHN |
| XXXXX | 0.77 | Eppa Rixey | 27 | PHI |
| XXXXX | 0.62 | Smoky Joe Wood | 23 | BOS |
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