| MLS | 26/10/14 | Columbus Crew | - | Philadelphia Union | 2:1 |  |
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| MLS | 10/05/15 | Vancouver Whitecaps | - | Philadelphia Union | 3:0 | ||||
| MLS | 06/09/15 | San Jose Earthquakes | - | Philadelphia Union | 1:2 | ||||
| MLS | 03/04/16 | Colorado Rapids | - | Toronto FC | 1:0 |
| MLS | 26/10/14 | Columbus Crew | - | Philadelphia Union | 2:1 | |
|||
| MLS | 10/05/15 | Vancouver Whitecaps | - | Philadelphia Union | 3:0 | ||||
| MLS | 06/09/15 | San Jose Earthquakes | - | Philadelphia Union | 1:2 | ||||
| MLS | 03/04/16 | Colorado Rapids | - | Toronto FC | 1:0 |
| Zachary Louis Pfeffer | |
| Born: | 06.01.1995 |
| Place of birth: |
Dresher, PA, 
USA |
| Nationality: |
USA
|
| Height: | 177 cm |
| Position(s): | Offensive Midfielder |
| Foot: | both |