| 6. Round | 20/08/2018 | Portland Timbers 2 | - | Seattle Sounders 2 | 4:1 | ||||
| 7. Round | 30/09/2018 | San Antonio FC | - | Seattle Sounders 2 | 3:1 |
| 6. Round | 20/08/2018 | Portland Timbers 2 | - | Seattle Sounders 2 | 4:1 | ||||
| 7. Round | 30/09/2018 | San Antonio FC | - | Seattle Sounders 2 | 3:1 |
| Jacob Alex Castro | |
| Born: | 18.12.1999 |
| Place of birth: |
Tukwila, WA, 
USA |
| Nationality: |
USA
|
| Height: | 193 cm |
| Weight: | 81 kg |
| Position(s): | Goalkeeper |