| ITF Turkey F30 | 09/29 07:00 | 62 | van Nieuwenhove, Jonathan v Cizelj-Zivkovic, Stefan | 7-5,4-6,4-6 | |
| ITF Turkey F29 | 09/23 07:30 | 62 | van Nieuwenhove, Jonathan v Walder, Jordi | 0-6,1-6 | |
| ITF Turkey F29 | 09/22 09:30 | 62 | van Nieuwenhove, Jonathan v Kargin, Kayra | 6-0,6-3 | |
| ITF Belgium F10 Qual | 08/25 08:00 | 54 | van Nieuwenhove, Jonathan v Dielen, Liam | 6-2,5-7,3-6 | |
| ITF Belgium F4 | 07/15 08:30 | 44 | van Nieuwenhove, Jonathan v Zaidman, Nicolas | 4-6,0-6 | |
| ITF Belgium F4 | 07/14 10:45 | 44 | Dias, Francisco v van Nieuwenhove, Jonathan | 5-7,7-5,4-6 | |
| ITF Belgium F4 | 07/14 07:00 | 44 | van Nieuwenhove, Jonathan v Louis Van Herck | 7-6,6-3 | |
| ITF Tunisia F25 | 06/23 08:00 | 62 | Diego F Flores v van Nieuwenhove, Jonathan | 7-5,5-7,7-5 | |
| ITF Germany F4 | 06/17 12:00 | 62 | Kai Wehnelt v van Nieuwenhove, Jonathan | 6-2,6-3 | |
| ITF Germany F4 | 06/16 08:00 | 62 | Flinner, Marek v van Nieuwenhove, Jonathan | 6-7,4-6 | |
| ITF Italy F36 Qual | 10/28 12:00 | 44 | Gatev, Maximilian v van Nieuwenhove, Jonathan | Retired | |
| ITF Egypt F26 | 09/17 15:00 | 54 | van Nieuwenhove, Jonathan v Ren Nakamura | 4-6,2-6 | |
| ITF Egypt F25 | 09/10 09:00 | 54 | Krivic, Ivan v van Nieuwenhove, Jonathan | 6-2,6-1 | |
| ITF Belgium F7 Qual | 07/29 11:00 | 62 | van Nieuwenhove, Jonathan v Boris Fassbender | 2-6,1-6 | |
| ITF Belgium F6 | 07/24 08:00 | 25 | Matteo Martineau v van Nieuwenhove, Jonathan | 6-1,6-3 | |
| ITF Belgium F4 Qual | 07/08 14:20 | 62 | Akbar, Mohammad Abid Ali Khan v van Nieuwenhove, Jonathan | 6-4,6-4 | |
| ITF Belgium F3 Qual | 07/01 10:00 | 62 | van Nieuwenhove, Jonathan v Evtimov, Gabriel | 0-6,4-6 | |
| ITF Tunisia F24 Qual | 06/19 13:30 | 44 | van Nieuwenhove, Jonathan v Grassi Mazzuchi, Juan Pablo | 2-6,2-6 | |
| ITF Tunisia F23 | 06/10 09:00 | 62 | van Nieuwenhove, Jonathan v Klimov, Daniil | 2-6,2-6 | |
| Czech Republic F2, Singles | 05/21 10:00 | 62 | Puodziunas, Scott v van Nieuwenhove, Jonathan | 6-0,6-0 | |
| ITF Spain F10 Qual | 04/01 08:00 | 62 | Miguel Damas v van Nieuwenhove, Jonathan | 6-2,6-2 | |
| ITF Spain F8 | 03/17 08:00 | 60 | Mardones, Bruno v van Nieuwenhove, Jonathan | 6-3,6-2 | |
| ITF Morocco F2 | 03/12 10:00 | 62 | van Nieuwenhove, Jonathan v von Hindte, Leonard | 0-6,2-6 | |
| ITF Morocco F1 | 03/05 11:00 | 62 | van Nieuwenhove, Jonathan v Tommaso Schold | 2-6,0-6 |