| Team | Tm | Tier | Game |
|---|---|---|---|
| Pittsburgh Pirates | PIT | 1.81 | 191509221_LAN_PIT |
| Washington Senators | MIN | 0.94 | 191509210_CHA_MIN |
| St. Louis Browns | BAL | 0.92 | 191509211_BAL_NYA |
| Philadelphia Phillies | PHI | 0.91 | 191509211_PHI_SLN |
| Boston Braves | ATL | 0.83 | 191509230_ATL_PIT |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Philadelphia Athletics | OAK | -12.46 | 191509220_DET_OAK |
| New York Giants | SFN | -3.3 | 191509211_SFN_CHN |
| Chicago Cubs | CHN | -2.42 | 191509211_SFN_CHN |
| St. Louis Cardinals | SLN | -0.93 | 191509230_SFN_SLN |
| Boston Red Sox | BOS | -0.25 | 191509221_CLE_BOS |
Based on accumulated WAA for this season up to 1915-09-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +022+ | 4.04 | Harry Coveleski | 294.3 | DET |
| +033+ | 3.09 | Gene Dale | 274.3 | CIN |
| +034+ | 3.07 | Doc Ayers | 192 | MIN |
| +040+ | 2.74 | Erskine Mayer | 257 | PHI |
| +043+ | 2.69 | Tom Hughes | 255.3 | ATL |
| +052+ | 2.37 | Carl Weilman | 284.3 | BAL |
| XXXXX | 1.15 | Reb Russell | 218.3 | CHA |
| XXXXX | 1.09 | Mellie Wolfgang | 52.3 | CHA |
| XXXXX | 0.96 | Hank Robinson | 141.7 | SLN |
| XXXXX | 0.88 | Allan Collamore | 52 | CLE |
| XXXXX | 0.6 | Charlie Boardman | 19 | SLN |
| XXXXX | 0.56 | George Sisler | 64 | BAL |
| XXXXX | 0.4 | Phil Slattery | 6 | PIT |
| XXXXX | 0.24 | Bill Morrisette | 10 | OAK |
| XXXXX | 0.15 | Harry Eccles | 18 | OAK |
| XXXXX | 0.06 | Dan Tipple | 1 | NYA |
| XXXXX | 0.06 | Bob Wright | 1 | CHN |
| XXXXX | -0.03 | Fred Lamlein | 19 | SLN |
| XXXXX | -0.06 | Carl Mays | 123.7 | BOS |
| XXXXX | -0.09 | Paul Carter | 40.3 | CLE |
| XXXXX | -0.22 | Limb McKenry | 89.3 | CIN |
| XXXXX | -0.3 | Pete Sims | 8.3 | BAL |
| XXXXX | -0.39 | Allen Sothoron | 3.7 | BAL |
| XXXXX | -0.47 | King Cole | 51 | NYA |
| XXXXX | -0.57 | Red Oldham | 46.7 | DET |
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