| 1. Journée | 04.03.2018 | Seattle Sounders | - | Los Angeles FC | 0:1 | ||||
| 1. Journée | 18.03.2018 | FC Dallas | - | Seattle Sounders | 3:0 | ||||
| 2. Journée | 01.04.2018 | Seattle Sounders | - | Impact de Montréal | 0:1 | ||||
| 2. Journée | 15.04.2018 | Sporting Kansas City | - | Seattle Sounders | 2:2 | ||||
| 2. Journée | 22.04.2018 | Seattle Sounders | - | Minnesota United FC | 3:1 | ||||
| 2. Journée | 30.04.2018 | Los Angeles FC | - | Seattle Sounders | 1:0 | ||||
| 3. Journée | 05.05.2018 | Seattle Sounders | - | Columbus Crew | 0:0 | ||||
| 3. Journée | 10.05.2018 | Toronto FC | - | Seattle Sounders | 1:2 | ||||
| 3. Journée | 13.05.2018 | Portland Timbers | - | Seattle Sounders | 1:0 | ||||
| 3. Journée | 26.05.2018 | Seattle Sounders | - | Real Salt Lake | 0:1 |  |
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| 4. Journée | 10.06.2018 | Seattle Sounders | - | D.C. United | 2:1 |  |
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| 4. Journée | 14.06.2018 | New York RB | - | Seattle Sounders | 2:1 | ||||
| 4. Journée | 24.06.2018 | Seattle Sounders | - | Chicago Fire | 1:1 | ||||
| 5. Journée | 05.07.2018 | Colorado Rapids | - | Seattle Sounders | 1:2 | |
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| 5. Journée | 08.07.2018 | New England Revolution | - | Seattle Sounders | 0:0 |
Norvège