3. Round | 10/05/2018 | Los Angeles Galaxy II | - | Saint Louis FC | 6:3 | ||||
4. Round | 24/06/2018 | Sacramento Republic | - | Saint Louis FC | 2:2 | ||||
4. Round | 01/07/2018 | Saint Louis FC | - | Rio Grande Valley FC | 0:0 | ||||
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 | ||||
6. Round | 12/08/2018 | Saint Louis FC | - | Las Vegas Lights FC | 4:1 | ||||
6. Round | 16/08/2018 | Saint Louis FC | - | Sacramento Republic | 2:1 | ||||
6. Round | 19/08/2018 | Fresno FC | - | Saint Louis FC | 1:0 |