| MLS | 01/06/14 | CD Chivas | - | Philadelphia Union | 0:3 | ||||
| MLS | 15/03/15 | Real Salt Lake | - | Philadelphia Union | 3:3 | ||||
| MLS | 09/08/15 | Orlando City | - | Philadelphia Union | 0:0 |
| MLS | 01/06/14 | CD Chivas | - | Philadelphia Union | 0:3 | ||||
| MLS | 15/03/15 | Real Salt Lake | - | Philadelphia Union | 3:3 | ||||
| MLS | 09/08/15 | Orlando City | - | Philadelphia Union | 0:0 |
| Zachary Louis Pfeffer | |
| Born: | 06.01.1995 |
| Place of birth: |
Dresher, PA, 
USA |
| Nationality: |
USA
|
| Height: | 177 cm |
| Position(s): | Offensive Midfielder |
| Foot: | both |