Stadium: Court 3 Round: 26 Ground: Clay
| 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 New York 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 |
| ATP Sofia MD | 2018/02/08 14:45 | Cerretani/Gille v Monroe/Smith | 3-6,7-6,3-10 |
| ATP Sofia MD | 2018/02/06 14:00 | Copil/Mergea v Monroe/Smith | 6-4,1-6,6-10 |