| 5. Round | 28/07/2013 | D.C. United | - | New England Revolution | 1:2 |  |
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| 6. Round | 04/08/2013 | D.C. United | - | Impact de Montréal | 3:1 |  |
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| 6. Round | 11/08/2013 | Philadelphia Union | - | D.C. United | 2:0 | ||||
| 6. Round | 25/08/2013 | D.C. United | - | Toronto FC | 1:1 | ||||
| 7. Round | 01/09/2013 | New York RB | - | D.C. United | 2:1 | ||||
| 7. Round | 28/09/2013 | Toronto FC | - | D.C. United | 4:1 | |
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| 8. Round | 05/10/2013 | D.C. United | - | Chicago Fire | 0:3 | ||||
| 8. Round | 13/10/2013 | D.C. United | - | Philadelphia Union | 1:1 | ||||
| 8. Round | 19/10/2013 | Sporting Kansas City | - | D.C. United | 1:0 | |
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| 8. Round | 27/10/2013 | D.C. United | - | Houston Dynamo | 1:2 |
USA