Round: 25 Ground: Clay
| Challenger Bordeaux Qual | 2018/05/13 10:50 | Mathias Bourgue v Niels Desein | 6-2,7-6 |
| Challenger Bordeaux Qual | 2018/05/12 11:10 | Jonathan Eysseric v Niels Desein | 3-6,6-3,3-6 |
| ITF France F8 | 2018/04/25 09:25 | Tristan Lamasine v Niels Desein | 7-5,6-4 |
| 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 |
| ITF Romania F2 | 2018/05/29 06:55 | Vladimir Filip v Constantin Sturdza | 6-0,6-1 |
| ITF Romania F3 | 2015/08/25 08:25 | Constantin Sturdza v Teodor-Dacian Craciun | 2-6,1-6 |
| ITF Romania F4 | 2014/06/16 08:00 | Constantin Sturdza v Patrick Grigoriu | 6-4,4-6,3-6 |