Stadium: Clay 6 Round: 62 Ground: Clay
| ITF Turkey F29 | 2018/09/22 09:30 | van Nieuwenhove, Jonathan v 카르긴, 카이라 | 6-0,6-3 |
| ITF Belgium F10 Qual | 2018/08/25 08:00 | van Nieuwenhove, Jonathan v 디엘렌, 리암 | 6-2,5-7,3-6 |
| ITF Belgium F4 | 2018/07/15 08:30 | van Nieuwenhove, Jonathan v Zaidman, Nicolas | 4-6,0-6 |
| ITF Belgium F4 | 2018/07/14 10:45 | 디아스, 프란시스코 v van Nieuwenhove, Jonathan | 5-7,7-5,4-6 |
| ITF Belgium F4 | 2018/07/14 07:00 | van Nieuwenhove, Jonathan v van Herck, Louis | 7-6,6-3 |
| ITF Tunisia F25 | 2018/06/23 08:00 | 페르난데즈 플로레스, 디에고 v van Nieuwenhove, Jonathan | 7-5,5-7,7-5 |
| ITF Germany F4 | 2018/06/17 12:00 | 웨흐넬트, 카이 v van Nieuwenhove, Jonathan | 6-2,6-3 |
| ITF Germany F4 | 2018/06/16 08:00 | Flinner, Marek v van Nieuwenhove, Jonathan | 6-7,4-6 |
| ITF Turkey F29 | 2018/09/22 07:00 | 왈더, 조르디 v Schwencke Lindqvist, Thomas | 6-2,6-1 |
| ITF Turkey F28 | 2018/09/20 09:10 | 왈더, 조르디 v 페르치코트, 마튜 | 4-6,2-6 |
| ITF Turkey F28 | 2018/09/18 09:10 | 왈더, 조르디 v 칼레단, 사힌 | 6-4,6-2 |
| ITF Turkey F28 | 2018/09/16 07:30 | 프레치텔, 세바스티안 v 왈더, 조르디 | 3-6,3-6 |
| ITF Romania F13 | 2018/09/09 10:00 | 왈더, 조르디 v 라마조티, 사무엘 | 0-6,2-6 |
| ITF Germany F13 | 2018/08/22 08:00 | 헬러, 페터 v 왈더, 조르디 | 7-6,6-3 |
| ITF Germany F13 | 2018/08/20 09:00 | 렘스트라, 카이 v 왈더, 조르디 | 3-6,6-1,3-6 |
| ITF Germany F13 | 2018/08/19 08:00 | 왈더, 짐 v 왈더, 조르디 | 0-6,6-2,1-6 |