Stadium: Court 5 Round: 26 Ground: Grass
| 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 |
| ATP Delray Beach - MD | 2018/02/22 16:00 | Albot/Basilashvili v Monroe/Smith | 5-7,1-6 |
| ATP Delray Beach - MD | 2018/02/21 18:50 | Chardy/Martin v Monroe/Smith | 6-3,1-6,4-10 |
| ATP Nowy Jork - MD | 2018/02/13 22:45 | Monroe/Smith v Albot/Basilashvili | 6-7,4-6 |
| ATP Sofia - MD | 2018/02/09 13:50 | Monroe/Smith v Mektic/Peya | 2-6,4-6 |