1. Round | 25/03/2018 | Tulsa Roughnecks | - | Real Monarchs SLC | 2:3 | ||||
1. Round | 31/03/2018 | Real Monarchs SLC | - | Portland Timbers 2 | 4:2 | ||||
2. Round | 08/04/2018 | Phoenix Rising | - | Real Monarchs SLC | 0:1 | ||||
4. Round | 17/06/2018 | Saint Louis FC | - | Real Monarchs SLC | 0:1 |