Stadium: Center Court Round: 25 Ground: Clay
| ITF Finland F1 | 2018/07/31 08:35 | Marc Dijkhuizen v Hugo Pontico | 4-6,5-7 |
| ITF Lithuania F1 | 2018/07/24 14:10 | Marc Dijkhuizen v Robertas Vrzesinski | 5-7,2-6 |
| ITF Estonia F1 | 2018/07/18 11:00 | Joao Lucas Reis da Silva v Marc Dijkhuizen | 6-2,7-5 |
| ITF Estonia F1 | 2018/07/17 10:00 | Roberts Grinvalds v Marc Dijkhuizen | 2-6,1-6 |
| ITF Netherlands F1 Qual | 2018/06/24 09:00 | Marc Dijkhuizen v Paul Barretto | 3-6,2-6 |
| ITF Turkey F22 | 2018/06/05 09:20 | Marc Dijkhuizen v Jonas Trinker | 1-6,3-6 |
| ITF Sweden F3 | 2018/05/21 08:00 | Marc Dijkhuizen v Frederik Press | 1-6,6-3,6-7 |
| ITF Sweden F3 Qual | 2018/05/20 09:00 | Marc Dijkhuizen v Rasmus Johnsson | 6-3,6-1 |
| Challenger Scheveningen Qual | 2018/07/15 11:55 | Jeremy Jahn v Niels Lootsma | 7-6,4-6,7-5 |
| Challenger Scheveningen Qual | 2018/07/14 16:25 | Alen Avidzba v Niels Lootsma | 3-6,3-6 |
| ITF Netherlands F3 | 2018/07/13 15:50 | Tim Van Rijthoven v Niels Lootsma | 7-6,6-4 |
| ITF Netherlands F3 | 2018/07/10 13:05 | Niels Lootsma v Fernando Yamacita | 3-6,6-2,6-3 |
| ITF Netherlands F2 | 2018/07/03 10:10 | Orlando Luz v Niels Lootsma | 1-6,6-3,6-4 |
| ITF Netherlands F1 Qual | 2018/06/25 10:50 | Niels Lootsma v Guillaume Dermiens | 4-6,6-7 |
| ITF Netherlands F1 Qual | 2018/06/24 09:00 | Niels Lootsma v Rob Reynolds | 6-3,6-4 |
| ITF Czech Republic F1 | 2018/05/16 08:00 | Niels Lootsma v Michal Konecny | 7-5,3-6,4-6 |