| 3. Round | 20/06/2021 | Los Angeles Galaxy | - | Seattle Sounders | 1:2 | ||||
| 3. Round | 24/06/2021 | Seattle Sounders | - | Real Salt Lake | 2:1 | ||||
| 3. Round | 27/06/2021 | Seattle Sounders | - | Vancouver Whitecaps | 2:2 | ||||
| 4. Round | 05/07/2021 | Colorado Rapids | - | Seattle Sounders | 1:1 | ||||
| 4. Round | 08/07/2021 | Seattle Sounders | - | Houston Dynamo | 2:0 | ||||
| 4. Round | 18/07/2021 | Minnesota United FC | - | Seattle Sounders | 1:0 | ||||
| 4. Round | 23/07/2021 | Austin FC | - | Seattle Sounders | 0:1 | ||||
| 4. Round | 26/07/2021 | Seattle Sounders | - | Sporting Kansas City | 1:3 | ||||
| 5. Round | 19/08/2021 | FC Dallas | - | Seattle Sounders | 0:1 | ||||
| 6. Round | 19/09/2021 | Real Salt Lake | - | Seattle Sounders | 1:0 |  |
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| 6. Round | 30/09/2021 | San Jose Earthquakes | - | Seattle Sounders | 1:3 | ||||
| 7. Round | 04/10/2021 | Seattle Sounders | - | Colorado Rapids | 3:0 | ||||
| 7. Round | 10/10/2021 | Seattle Sounders | - | Vancouver Whitecaps | 4:1 | ||||
| 7. Round | 17/10/2021 | Houston Dynamo | - | Seattle Sounders | 2:1 |
France
Senegal