Stadium: Center Court Round: 25 Ground: Clay
| ATP Estoril Qual | 2018/04/30 13:45 | Ricardo Ojeda Lara v Joao Monteiro | 6-3,2-6,6-3 |
| ATP Estoril Qual | 2018/04/29 12:35 | Joao Monteiro v Stephane Robert | 6-3,6-7,7-6 |
| ITF Portugal F8 | 2018/04/20 12:40 | Joao Monteiro v Tiago Cacao | 4-6,5-7 |
| ITF Portugal F8 | 2018/04/19 13:05 | Joao Monteiro v Niels Desein | 6-2,6-7,6-4 |
| ITF Portugal F8 | 2018/04/17 12:20 | Joao Monteiro v Bernardo Saraiva | 6-2,6-2 |
| ITF Portugal F7 | 2018/04/12 11:00 | Igor Sijsling v Joao Monteiro | 6-2,6-1 |
| ITF Portugal F6 | 2018/03/29 12:30 | Joao Monteiro v Frederico Ferreira Silva | 6-7,4-6 |
| ITF Portugal F6 | 2018/03/28 11:30 | Joao Monteiro v David Pichler | 7-5,7-6 |
| Challenger Ostrava | 2018/05/01 09:00 | Gleb Sakharov v Gianluigi Quinzi | 2-6,1-6 |
| ATP Miami Qual | 2018/03/19 16:20 | Gleb Sakharov v Ernesto Escobedo | 0-6,3-6 |
| ITF Canada F2 | 2018/03/06 17:35 | Gleb Sakharov v JC Aragone | 3-6,7-6,6-7 |
| ATP Dubai | 2018/02/26 10:00 | Gleb Sakharov v Philipp Kohlschreiber | 4-6,2-6 |
| ATP Dubai Qual | 2018/02/25 08:00 | Blaz Kavcic v Gleb Sakharov | 3-6,4-6 |
| ATP Dubai Qual | 2018/02/24 07:00 | Rajeev Ram v Gleb Sakharov | 2-6,3-6 |
| Challenger Bergamo | 2018/02/20 15:40 | Andrea Arnaboldi v Gleb Sakharov | 7-6,7-5 |
| Challenger Cherbourg | 2018/02/15 18:30 | Mikael Ymer v Gleb Sakharov | 6-4,6-4 |