Stadium: Stadium Court Round: 29 Ground: Hardcourt outdoor
| ATP Hertogenbosch MD | 2018/06/11 11:20 | Arneodo/Muller v Monroe/Smith | 7-6,3-6,11-9 |
| Challenger Surbiton MD | 2018/06/07 13:20 | Bambridge/O'Mara v Monroe/Smith | 7-5,3-6,10-7 |
| Challenger Surbiton MD | 2018/06/06 14:30 | Melzer/Ramanathan v Monroe/Smith | 6-4,6-7,2-10 |
| Challenger Surbiton MD | 2018/06/04 15:20 | Bhambri/Ebden v Monroe/Smith | 2-6,6-4,7-10 |
| French Open MD | 2018/05/30 11:40 | Johnson/Sock v Monroe/Smith | 7-6,6-4 |
| ATP Houston MD | 2018/04/10 20:15 | Begemann/Sancic v Monroe/Smith | 6-3,6-4 |
| ATP Delray Beach MD | 2018/02/25 17:30 | Sock/Withrow v Monroe/Smith | 4-6,6-4,10-8 |
| ATP Delray Beach MD | 2018/02/24 17:30 | Monroe/Smith v Ebden/Young | 7-6,2-6,10-7 |