Stadium: Court 1 Round: 26
| ITF Portugal F18 | 2018/09/25 09:00 | Maxime Tchoutakian v Jonas Merckx | 2-6,4-6 |
| ITF Belgium F10 | 2018/08/30 09:00 | Jonas Merckx v Colin Sinclair | 2-6,6-4,1-6 |
| ITF Belgium F10 | 2018/08/29 07:30 | Jonas Merckx v Simon Carr | 7-6,4-6,6-2 |
| ITF Belgium F10 | 2018/08/28 08:00 | Jonas Merckx v Buvaysar Gadamauri | 6-1,6-3 |
| ITF Belgium F9 | 2018/08/23 11:00 | Juan Bautista Otegui v Jonas Merckx | 6-2,6-4 |
| ITF Belgium F9 | 2018/08/21 10:30 | Nico Mertens v Jonas Merckx | 2-6,2-6 |
| Challenger Meerbusch Qual | 2018/08/11 14:35 | Nicola Kuhn v Jonas Merckx | 7-5,6-4 |
| ITF Germany F10 | 2018/07/31 14:55 | Botic Van De Zandschulp v Jonas Merckx | 6-1,6-2 |
| ITF Portugal F18 | 2018/09/25 10:50 | Pedro Gabriel Rodrigues v Niels Desein | 2-6,2-6 |
| ITF Portugal F16 | 2018/08/23 09:00 | Niels Desein v Sem Verbeek | 2-6,6-7 |
| ITF Portugal F16 | 2018/08/22 12:00 | Niels Desein v Jorge Blanco Guadalupe | 6-0,6-0 |
| ITF Belgium F8 | 2018/08/14 16:30 | Arklon H D Pino v Niels Desein | 7-5,7-6 |
| ITF Belgium F2 | 2018/06/27 09:00 | Agustin Velotti v Niels Desein | 7-5,6-1 |
| Challenger Poprad Tatry Qual | 2018/06/16 15:45 | Patrik Rikl v Niels Desein | 6-2,5-7,7-6 |
| Challenger Poprad Tatry Qual | 2018/06/16 11:05 | Peter Samosi v Niels Desein | 2-6,0-6 |
| ITF Spain F14 | 2018/06/07 17:30 | Niels Desein v David Vega Hernandez | 6-4,3-6,4-6 |