| 4. Round | 07/05/2023 | Seattle Sounders | - | Sporting Kansas City | 1:2 | ||||
| 4. Round | 14/05/2023 | Houston Dynamo | - | Seattle Sounders | 0:1 | ||||
| 4. Round | 18/05/2023 | Seattle Sounders | - | Austin FC | 1:2 | ||||
| 4. Round | 21/05/2023 | Vancouver Whitecaps | - | Seattle Sounders | 2:0 | ||||
| 4. Round | 28/05/2023 | Seattle Sounders | - | New York RB | 1:0 |  |
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| 5. Round | 03/06/2023 | Seattle Sounders | - | Portland Timbers | 0:0 | ||||
| 5. Round | 11/06/2023 | Charlotte FC | - | Seattle Sounders | 3:3 | ||||
| 5. Round | 22/06/2023 | Los Angeles FC | - | Seattle Sounders | 1:0 | ||||
| 5. Round | 25/06/2023 | Seattle Sounders | - | Orlando City | 0:0 | |
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| 6. Round | 02/07/2023 | Seattle Sounders | - | Houston Dynamo | 1:0 | |
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| 6. Round | 09/07/2023 | Vancouver Whitecaps | - | Seattle Sounders | 2:3 | ||||
| 6. Round | 13/07/2023 | San Jose Earthquakes | - | Seattle Sounders | 2:0 |
USA