Stadium: Court Central Round: 25 Ground: Clay
| ITF France F13 | 2014/07/04 14:30 | Tristan Lamasine v Niels Desein | 4-6,6-3,6-1 |
| ITF Portugal F8 | 2018/04/18 13:50 | Sam Barry v Tristan Lamasine | 3-6,6-3,7-6 |
| ITF Portugal F7 | 2018/04/12 18:40 | Pedro Cachin v Tristan Lamasine | 6-4,6-3 |
| ITF Portugal F7 | 2018/04/12 08:00 | Tristan Lamasine v Fred Gil | 3-6,7-6,6-4 |
| Challenger St Brieuc | 2018/03/27 10:45 | Tristan Lamasine v Egor Gerasimov | 7-6,4-6,2-6 |
| Challenger St Brieuc Qual | 2018/03/25 13:40 | Remi Boutillier v Tristan Lamasine | 6-3,6-7,2-6 |
| Challenger St Brieuc Qual | 2018/03/24 10:20 | Luca Margaroli v Tristan Lamasine | 2-6,4-6 |
| ITF France F5 | 2018/03/17 13:30 | Antoine Hoang v Tristan Lamasine | 6-3,6-4 |
| ITF France F5 | 2018/03/14 10:00 | Tristan Lamasine v Maxime Mora | 6-3,6-4 |
| ITF Portugal F8 | 2018/04/19 13:05 | Joao Monteiro v Niels Desein | 6-2,6-7,6-4 |
| ITF Portugal F8 | 2018/04/18 15:00 | Niels Desein v Francisco Dias | 6-1,4-6,6-1 |
| ITF Italy F7 | 2018/04/11 13:45 | Niels Desein v Andrea Collarini | 3-6,6-7 |
| ITF Italy F7 | 2018/04/09 16:20 | Niels Desein v Fabrizio Ornago | 6-2,6-1 |
| Challenger Alicante Qual | 2018/03/31 10:10 | Daniel Gimeno-Traver v Niels Desein | 3-6,6-1,6-2 |
| Challenger Lille Qual | 2018/03/19 11:05 | Niels Desein v Antoine Escoffier | 6-3,3-6,3-6 |
| Challenger Lille Qual | 2018/03/18 12:00 | Niels Desein v Edward Corrie | 7-6,3-6,6-1 |
| Challenger Lille Qual | 2018/03/17 10:50 | Alexander Ward v Niels Desein | 6-4,3-6,4-6 |