| Team | Tm | Tier | Game |
|---|---|---|---|
| Pittsburgh Pirates | PIT | 2.18 | 191509200_LAN_PIT |
| St. Louis Browns | BAL | 1.72 | 191509200_BAL_MIN |
| Washington Senators | MIN | 1.29 | 191509180_BAL_MIN |
| Philadelphia Phillies | PHI | 0.87 | 191509191_PHI_SLN |
| Boston Braves | ATL | 0.28 | 191509190_ATL_CIN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Giants | SFN | -6.1 | 191509190_SFN_CHN |
| Chicago Cubs | CHN | -3.26 | 191509180_LAN_CHN |
| St. Louis Cardinals | SLN | -0.97 | 191509191_PHI_SLN |
| Philadelphia Athletics | OAK | -0.76 | 191509181_CLE_OAK |
| Boston Red Sox | BOS | -0.5 | 191509180_DET_BOS |
Based on accumulated WAA for this season up to 1915-09-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +012+ | 4.69 | Al Mamaux | 236.3 | PIT |
| +029+ | 3.14 | Rube Foster | 229.3 | BOS |
| +038+ | 2.82 | Doc Ayers | 188 | MIN |
| +041+ | 2.76 | Erskine Mayer | 257 | PHI |
| +050+ | 2.38 | Wheezer Dell | 206 | LAN |
| +070+ | 1.8 | Carl Weilman | 276 | BAL |
| +074+ | 1.64 | Ernie Koob | 110.3 | BAL |
| +075+ | 1.6 | Red Hoff | 38 | BAL |
| +089+ | 1.27 | Jesse Barnes | 36.3 | ATL |
| XXXXX | 0.95 | Mellie Wolfgang | 50.3 | CHA |
| XXXXX | 0.9 | Lynn Brenton | 42.7 | CLE |
| XXXXX | 0.58 | Harry Eccles | 15 | OAK |
| XXXXX | 0.48 | Charlie Boardman | 14 | SLN |
| XXXXX | 0.25 | Nap Rucker | 104.7 | LAN |
| XXXXX | 0.12 | Cliff Markle | 5 | NYA |
| XXXXX | 0.11 | Johnny Tillman | 1.7 | BAL |
| XXXXX | 0.07 | Dan Tipple | 1 | NYA |
| XXXXX | 0.07 | Phil Slattery | 1 | PIT |
| XXXXX | -0.08 | Cy Pieh | 82.7 | NYA |
| XXXXX | -0.1 | Carl Mays | 119.7 | BOS |
| XXXXX | -0.15 | Paul Carter | 36.3 | CLE |
| XXXXX | -0.16 | Fred Lamlein | 17 | SLN |
| XXXXX | -0.28 | Limb McKenry | 88.3 | CIN |
| XXXXX | -0.29 | Walter Ancker | 17.7 | OAK |
| XXXXX | -0.46 | King Cole | 51 | NYA |
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