Stadium: Court 1 Round: 62 Ground: Clay
| Challenger Loughborough Qual | 2018/05/21 12:20 | Igor Sijsling v Jurij Rodionov | 6-7,3-6 |
| Challenger Loughborough Qual | 2018/05/20 14:30 | Igor Sijsling v Peter Bothwell | 6-4,6-2 |
| Challenger Loughborough Qual | 2018/05/19 17:20 | Igor Sijsling v Julian Ocleppo | 6-4,6-7,6-1 |
| Challenger Heilbronn | 2018/05/17 11:00 | Igor Sijsling v Jiri Vesely | 3-6,6-4,2-6 |
| Challenger Heilbronn Qual | 2018/05/14 11:00 | Miliaan Niesten v Igor Sijsling | 3-6,2-6 |
| Challenger Heilbronn Qual | 2018/05/13 09:00 | Christoph Negritu v Igor Sijsling | 4-6,0-6 |
| Challenger Glasgow | 2018/05/03 09:30 | Igor Sijsling v Roberto Ortega-Olmedo | 6-1,6-7,6-7 |
| Challenger Glasgow | 2018/05/01 09:30 | Bernabe Zapata Miralles v Igor Sijsling | 1-6,3-6 |
| ITF Germany F5 | 2018/06/24 08:00 | Quentin Folliot v Daniel De Jonge | 6-3,6-0 |
| ITF Belgium F1 | 2018/06/21 13:00 | Yannik Reuter v Quentin Folliot | 6-3,0-6,6-0 |
| ITF Belgium F1 | 2018/06/20 08:00 | Quentin Folliot v Dominic Barretto | 6-2,6-0 |
| ITF Belgium F1 Qual | 2018/06/18 08:00 | Benjamin Dhoe v Quentin Folliot | 5-7,3-6 |
| ITF Belgium F1 Qual | 2018/06/17 08:00 | Guillaume Dermiens v Quentin Folliot | 1-6,6-7 |
| ITF Kazakhstan F5 | 2018/04/24 04:00 | Maksim Tikhomirov v Quentin Folliot | 6-4,6-0 |
| ITF Kazakhstan F5 Qual | 2018/04/23 07:00 | Loick Bruandet v Quentin Folliot | 2-6,7-5,3-6 |
| ITF Kazakhstan F5 Qual | 2018/04/22 06:00 | Nikita Kashirin v Quentin Folliot | 4-6,4-6 |