| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pete Alexander | PHI | 13.45 | 191509022_PHI_SFN |
| Walter Johnson | MIN | 6.23 | 191509030_NYA_MIN |
| Jim Scott | CHA | 2.84 | 191509010_CHA_DET |
| Al Mamaux | PIT | 1.51 | 191509030_CHN_PIT |
| Ernie Shore | BOS | 1.48 | 191509030_BOS_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Shawkey | NYA | -4.02 | 191509020_NYA_MIN |
| Hub Perdue | SLN | -1.73 | 191509012_SLN_PIT |
| Phil Douglas | LAN | -1.5 | 191509030_LAN_ATL |
| Weldon Wyckoff | OAK | -1.24 | 191509010_BOS_OAK |
| Grover Lowdermilk | BAL | -0.85 | 191509020_CLE_BAL |
Based on accumulated WAA for this season up to 1915-09-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.07 | Pete Alexander | 308.3 | PHI |
| +003+ | 7.82 | Walter Johnson | 282.7 | MIN |
| +010+ | 4.75 | Jim Scott | 244.7 | CHA |
| +014+ | 4.28 | Al Mamaux | 220.7 | PIT |
| +016+ | 4.23 | Ernie Shore | 196 | BOS |
| +018+ | 3.77 | Rube Foster | 211.7 | BOS |
| +019+ | 3.74 | Harry Coveleski | 259.3 | DET |
| +021+ | 3.66 | Fred Toney | 160 | CIN |
| +024+ | 3.51 | Ray Fisher | 221 | NYA |
| +028+ | 3.19 | Jeff Tesreau | 241.7 | SFN |
| +033+ | 2.89 | Gene Dale | 233.7 | CIN |
| +032+ | 2.89 | Red Faber | 261.3 | CHA |
| +035+ | 2.76 | Bert Humphries | 126 | CHN |
| +036+ | 2.75 | Hooks Dauss | 260.3 | DET |
| +039+ | 2.71 | Dick Rudolph | 274.3 | ATL |
| +041+ | 2.64 | Bert Gallia | 210 | MIN |
| +046+ | 2.5 | Bob Harmon | 228.7 | PIT |
| +049+ | 2.37 | Joe Benz | 188.7 | CHA |
| +051+ | 2.26 | Jeff Pfeffer | 206.7 | LAN |
| +052+ | 2.24 | Tom Hughes | 214.7 | ATL |
| +053+ | 2.21 | Jack Coombs | 170.3 | LAN |
| +058+ | 2.1 | Ernie Koob | 97.3 | BAL |
| +059+ | 2.03 | Reb Russell | 186.7 | CHA |
| +062+ | 1.94 | Jimmy Lavender | 161.7 | CHN |
| +064+ | 1.9 | Pat Ragan | 219 | TOT |
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