6. Journée | 26.08.2018 | OKC Energy FC | - | Seattle Sounders 2 | 3:0 | ||||
7. Journée | 09.09.2018 | Sacramento Republic | - | Seattle Sounders 2 | 3:0 | ||||
8. Journée | 04.10.2018 | Seattle Sounders 2 | - | Los Angeles Galaxy II | 2:2 | ||||
8. Journée | 11.10.2018 | Seattle Sounders 2 | - | Colorado Springs Switchbacks | 2:2 |