6. Round | 13/08/2018 | Seattle Sounders | - | FC Dallas | 2:1 | ||||
6. Round | 27/08/2018 | Portland Timbers | - | Seattle Sounders | 0:1 | ||||
7. Round | 01/09/2018 | Seattle Sounders | - | Sporting Kansas City | 3:1 | ||||
7. Round | 16/09/2018 | Vancouver Whitecaps | - | Seattle Sounders | 1:2 | ||||
7. Round | 20/09/2018 | Seattle Sounders | - | Philadelphia Union | 0:1 | ||||
7. Round | 24/09/2018 | Los Angeles Galaxy | - | Seattle Sounders | 3:0 |