| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 10.73 | 191506100_BAL_MIN |
| Pete Alexander | PHI | 5.09 | 191506090_PHI_CHN |
| Jim Scott | CHA | 3.01 | 191506100_CHA_NYA |
| Jeff Tesreau | SFN | 1.89 | 191506100_SFN_SLN |
| Rube Foster | BOS | 1.31 | 191506110_DET_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bullet Joe Bush | OAK | -4.92 | 191506090_CLE_OAK |
| Harry Hoch | BAL | -2.29 | 191506100_BAL_MIN |
| Phil Douglas | CIN | -1.54 | 191506090_LAN_CIN |
| Eppa Rixey | PHI | -1.1 | 191506110_PHI_CHN |
| Lee Meadows | SLN | -0.76 | 191506090_SFN_SLN |
Based on accumulated WAA for this season up to 1915-06-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 3.58 | Pete Alexander | 124 | PHI |
| +004+ | 3.29 | Walter Johnson | 113.3 | MIN |
| +007+ | 2.68 | Al Mamaux | 76.7 | PIT |
| +011+ | 2.4 | Bert Humphries | 45.7 | CHN |
| +016+ | 1.99 | Smoky Joe Wood | 51 | BOS |
| +017+ | 1.9 | Erskine Mayer | 93 | PHI |
| +018+ | 1.89 | Jim Scott | 79.3 | CHA |
| +019+ | 1.79 | Guy Morton | 101.3 | CLE |
| +020+ | 1.78 | Red Faber | 112.7 | CHA |
| +021+ | 1.76 | Reb Russell | 83.7 | CHA |
| +024+ | 1.57 | Tom Hughes | 94 | ATL |
| +025+ | 1.53 | Jim Shaw | 59.7 | MIN |
| +026+ | 1.5 | Wheezer Dell | 104 | LAN |
| +028+ | 1.42 | Joe Benz | 69 | CHA |
| +030+ | 1.4 | Harry Coveleski | 99 | DET |
| +031+ | 1.38 | Jean Dubuc | 111.7 | DET |
| +032+ | 1.31 | Rube Foster | 86.3 | BOS |
| +033+ | 1.28 | Dick Rudolph | 96 | ATL |
| +034+ | 1.28 | Hooks Dauss | 113.3 | DET |
| XXXXX | 1.2 | Pete Schneider | 57.7 | CIN |
| XXXXX | 1.2 | Jeff Pfeffer | 67 | LAN |
| XXXXX | 1.14 | Dan Griner | 79.3 | SLN |
| XXXXX | 1.13 | Ray Fisher | 88.7 | NYA |
| XXXXX | 1.1 | Ernie Shore | 70 | BOS |
| XXXXX | 1.09 | Zip Zabel | 60.7 | CHN |
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