3. Round | 27/05/2018 | Colorado Springs Switchbacks | - | Saint Louis FC | 3:0 | ||||
5. Round | 22/07/2018 | Saint Louis FC | - | Orange County SC | 2:2 | ||||
5. Round | 29/07/2018 | Reno 1868 FC | - | Saint Louis FC | 1:2 | ||||
6. Round | 05/08/2018 | Saint Louis FC | - | Seattle Sounders 2 | 2:0 |