Round: 62 Ground: Hardcourt outdoor
| ITF Turkey F29 | 2018/09/23 07:30 | Jonathan Van Nieuwenhove v Jordi Walder | 0-6,1-6 |
| ITF Turkey F29 | 2018/09/22 09:30 | Jonathan Van Nieuwenhove v Kayra Kargin | 6-0,6-3 |
| ITF Belgium F10 Qual | 2018/08/25 08:00 | Jonathan Van Nieuwenhove v Liam Dielen | 6-2,5-7,3-6 |
| ITF Belgium F4 | 2018/07/15 08:30 | Jonathan Van Nieuwenhove v Nicolas Zaidman | 4-6,0-6 |
| ITF Belgium F4 | 2018/07/14 10:45 | Francisco Dias v Jonathan Van Nieuwenhove | 5-7,7-5,4-6 |
| ITF Belgium F4 | 2018/07/14 07:00 | Jonathan Van Nieuwenhove v Louis Van Herck | 7-6,6-3 |
| ITF Tunisia F25 | 2018/06/23 08:00 | Diego F Flores v Jonathan Van Nieuwenhove | 7-5,5-7,7-5 |
| ITF Germany F4 | 2018/06/17 12:00 | Kai Wehnelt v Jonathan Van Nieuwenhove | 6-2,6-3 |
| ITF Serbia F5 | 2018/09/02 10:30 | Shunsuke Wakita v Stefan Cizelj-Zivkovic | 6-4,6-2 |
| ITF Serbia F5 | 2018/09/01 09:30 | Stefan Cizelj-Zivkovic v Greg Polmans | 7-6,4-6,6-4 |
| ITF Serbia F4 | 2018/08/25 07:00 | Stefan Cizelj-Zivkovic v Petar Pjevcevic | 4-6,4-6 |
| ITF Serbia F1 Qual | 2018/08/04 07:00 | Stefan Cizelj-Zivkovic v Dusan Obradovic | 6-7,6-3,2-6 |