| 1. Jornada | 17.03.2018 | Seattle Sounders 2 | - | Portland Timbers 2 | 2:1 | ||||
| 2. Jornada | 08.04.2018 | Sacramento Republic | - | Seattle Sounders 2 | 1:0 | ||||
| 2. Jornada | 15.04.2018 | Seattle Sounders 2 | - | Rio Grande Valley FC | 3:2 |  |
|||
| 2. Jornada | 22.04.2018 | Colorado Springs Switchbacks | - | Seattle Sounders 2 | 0:0 | ||||
| 3. Jornada | 06.05.2018 | Seattle Sounders 2 | - | Sacramento Republic | 1:2 | ||||
| 5. Jornada | 02.07.2018 | Los Angeles Galaxy II | - | Seattle Sounders 2 | 5:3 | ||||
| 5. Jornada | 08.07.2018 | Seattle Sounders 2 | - | Reno 1868 FC | 1:2 | ||||
| 5. Jornada | 27.07.2018 | Seattle Sounders 2 | - | Las Vegas Lights FC | 3:0 | ||||
| 6. Jornada | 05.08.2018 | Saint Louis FC | - | Seattle Sounders 2 | 2:0 | ||||
| 6. Jornada | 12.08.2018 | Seattle Sounders 2 | - | San Antonio FC | 3:2 | ||||
| 7. Jornada | 23.09.2018 | Rio Grande Valley FC | - | Seattle Sounders 2 | 3:0 |
Estados Unidos