Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| 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 |
| ITF Israel F1 | 2018/03/06 08:00 | Tyler Mercier v Niels Desein | 6-3,7-6 |
| ITF Switzerland F2 | 2018/02/17 10:00 | Niels Desein v Ugo Humbert | 7-6,6-7,3-6 |
| ITF Portugal F8 Qual | 2018/04/16 09:30 | Francisco Dias v Lluis Dolz | 6-3,3-6,6-2 |
| ITF Portugal F8 Qual | 2018/04/15 09:00 | Francisco Dias v Alex M Pujolras | 6-2,6-4 |
| ITF Portugal F7 Qual | 2018/04/09 15:25 | Jules Okala v Francisco Dias | 7-5,6-2 |
| ITF Portugal F4 | 2018/03/14 10:00 | Francisco Dias v Maximilian Neuchrist | 2-6,0-6 |
| ITF Portugal F3 | 2018/03/10 13:15 | Steven Diez v Francisco Dias | 6-1,6-1 |
| ITF Portugal F3 | 2018/03/08 13:30 | Francisco Dias v Francisco Cabral | 6-4,7-6 |
| ITF Portugal F2 | 2018/02/28 15:30 | Luis Faria v Francisco Dias | 6-4,7-6 |
| ITF Portugal F2 Qual | 2018/02/27 13:15 | Fernando Bogajo v Francisco Dias | 6-2,7-6 |