| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pete Alexander | PHI | 18.05 | 191509160_PHI_CIN |
| Walter Johnson | MIN | 8.38 | 191509160_BAL_MIN |
| Jim Scott | CHA | 2.22 | 191509170_CHA_NYA |
| Fred Toney | CIN | 2 | 191509170_PHI_CIN |
| Guy Morton | CLE | 1.33 | 191509171_CLE_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Shawkey | NYA | -3.12 | 191509160_CHA_NYA |
| Phil Douglas | CHN | -1.66 | 191509150_ATL_CHN |
| Rube Benton | SFN | -1.58 | 191509171_SFN_PIT |
| Bill James | DET | -1.47 | 191509170_DET_BOS |
| Lee Meadows | SLN | -1.06 | 191509172_ATL_SLN |
Based on accumulated WAA for this season up to 1915-09-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 12.21 | Pete Alexander | 348.3 | PHI |
| +003+ | 8.58 | Walter Johnson | 300.7 | MIN |
| +010+ | 5.32 | Ernie Shore | 216 | BOS |
| +011+ | 4.99 | Fred Toney | 194 | CIN |
| +014+ | 4.51 | Jim Scott | 269.3 | CHA |
| +016+ | 4.25 | Al Mamaux | 228.7 | PIT |
| +018+ | 4.2 | Ray Fisher | 238 | NYA |
| +023+ | 3.74 | Guy Morton | 240 | CLE |
| +024+ | 3.71 | Jeff Pfeffer | 245.3 | LAN |
| +025+ | 3.64 | Harry Coveleski | 280 | DET |
| +027+ | 3.38 | Dick Rudolph | 301.3 | ATL |
| +028+ | 3.34 | Gene Dale | 260.7 | CIN |
| +031+ | 3.15 | Rube Foster | 228 | BOS |
| +034+ | 3 | Tom Hughes | 246.3 | ATL |
| +037+ | 2.87 | Joe Benz | 205.3 | CHA |
| +038+ | 2.83 | Hooks Dauss | 283.7 | DET |
| +047+ | 2.49 | Dutch Leonard | 162.3 | BOS |
| +048+ | 2.44 | Erskine Mayer | 251 | PHI |
| +052+ | 2.25 | Jeff Tesreau | 270.7 | SFN |
| +056+ | 2.16 | Pete Schneider | 238.7 | CIN |
| +061+ | 2.01 | Harry Harper | 62.7 | MIN |
| +067+ | 1.82 | Erv Kantlehner | 135 | PIT |
| +068+ | 1.81 | Bill Doak | 260.7 | SLN |
| +071+ | 1.73 | Bob Harmon | 254 | PIT |
| +073+ | 1.66 | Ernie Koob | 110.3 | BAL |
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