| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 10.14 | 191504280_OAK_MIN |
| Eddie Cicotte | CHA | 7.11 | 191504290_CLE_CHA |
| Slim Sallee | SLN | 2.25 | 191504280_PIT_SLN |
| Bill James | ATL | 1.57 | 191504290_ATL_SFN |
| Wilbur Cooper | PIT | 0.88 | 191504300_CHN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Weldon Wyckoff | OAK | -1.95 | 191504280_OAK_MIN |
| Eppa Rixey | PHI | -1.89 | 191504300_LAN_PHI |
| Hub Perdue | SLN | -1.48 | 191504300_CIN_SLN |
| Bob Harmon | PIT | -0.9 | 191504280_PIT_SLN |
| Rube Benton | CIN | -0.48 | 191504300_CIN_SLN |
Based on accumulated WAA for this season up to 1915-04-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 1.94 | Bernie Boland | 30 | DET |
| +002+ | 1.91 | Walter Johnson | 35.3 | MIN |
| +004+ | 1.71 | Pete Alexander | 36 | PHI |
| +008+ | 1.34 | Ray Fisher | 27 | NYA |
| +011+ | 1.28 | Jeff Tesreau | 26 | SFN |
| XXXXX | 1.13 | Red Faber | 42.3 | CHA |
| XXXXX | 1.06 | Hub Perdue | 25 | SLN |
| XXXXX | 1.03 | Grover Lowdermilk | 34 | BAL |
| XXXXX | 0.94 | Zip Zabel | 34.3 | CHN |
| XXXXX | 0.86 | Erskine Mayer | 30 | PHI |
| XXXXX | 0.85 | Eppa Rixey | 18 | PHI |
| XXXXX | 0.84 | Bert Gallia | 23.3 | MIN |
| XXXXX | 0.81 | Paul Strand | 19.7 | ATL |
| XXXXX | 0.77 | Joe Benz | 19.7 | CHA |
| XXXXX | 0.73 | Hooks Dauss | 33.7 | DET |
| XXXXX | 0.72 | Bob Shawkey | 22.7 | OAK |
| XXXXX | 0.68 | Dick Rudolph | 35 | ATL |
| XXXXX | 0.66 | Ray Keating | 9 | NYA |
| XXXXX | 0.64 | George Chalmers | 18 | PHI |
| XXXXX | 0.64 | Dan Griner | 25 | SLN |
| XXXXX | 0.62 | Jean Dubuc | 35 | DET |
| XXXXX | 0.59 | Wilbur Cooper | 23.7 | PIT |
| XXXXX | 0.59 | Guy Morton | 30 | CLE |
| XXXXX | 0.57 | Jack Coombs | 13.3 | LAN |
| XXXXX | 0.5 | Eddie Cicotte | 24.7 | CHA |
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