Stadium: Center Court Round: 28 Ground: Clay
| ITF Netherlands F4 | 2018/08/17 09:00 | Kazuki Nishiwaki v Jesper De Jong | 4-3 |
| ITF Netherlands F4 | 2018/08/16 10:30 | Yannick Mertens v Kazuki Nishiwaki | 3-6,6-7 |
| ITF Netherlands F4 | 2018/08/15 12:45 | Justin Butsch v Kazuki Nishiwaki | 6-7,0-6 |
| ITF Indonesia F3 | 2018/08/07 04:50 | Kazuki Nishiwaki v Ajeet Rai | 3-6,6-7 |
| ITF Hong Kong F1 | 2018/06/25 03:55 | Kazuki Nishiwaki v Makoto Ochi | 7-6,6-2 |
| ITF Singapore F3 | 2018/05/28 05:00 | Maverick Banes v Kazuki Nishiwaki | 6-7,6-4,7-6 |
| ITF Singapore F2 | 2018/05/25 03:00 | Kazuki Nishiwaki v Collin Altamirano | 7-5,2-6,3-6 |
| ITF Singapore F2 | 2018/05/24 04:55 | Kazuki Nishiwaki v Makoto Ochi | 6-2,7-5 |
| ITF Netherlands F4 | 2018/08/17 12:55 | Niels Lootsma v Max Houkes | 7-5,6-4 |
| ITF Netherlands F4 | 2018/08/16 09:40 | Michiel de Krom v Niels Lootsma | 1-6,6-4,5-7 |
| ITF Netherlands F4 | 2018/08/14 10:00 | Marc Dijkhuizen v Niels Lootsma | 1-6,2-6 |
| 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 |