| 2. Journée | 28.04.2018 | Philadelphia Union | - | D.C. United | 3:2 | ||||
| 3. Journée | 13.05.2018 | Real Salt Lake | - | D.C. United | 3:2 | ||||
| 3. Journée | 27.05.2018 | Los Angeles FC | - | D.C. United | 1:1 |  |
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| 4. Journée | 10.06.2018 | Seattle Sounders | - | D.C. United | 2:1 | ||||
| 5. Journée | 01.07.2018 | New England Revolution | - | D.C. United | 3:2 | ||||
| 5. Journée | 05.07.2018 | Los Angeles Galaxy | - | D.C. United | 2:2 | ||||
| 5. Journée | 21.07.2018 | Atlanta United FC | - | D.C. United | 3:1 |
Bolivie