stadio: Court 4 Round: 25 Ground: Clay
| ITF M25 L'Aia | 2023/07/07 16:30 | Guy Den Ouden v Ryan Nijboer | 6-1,6-2 |
| ITF M25 L'Aia | 2023/07/06 14:05 | Aleksandr Braynin v Ryan Nijboer | 4-6,6-7 |
| ITF M25 L'Aia | 2023/07/05 15:15 | Felix Corwin v Ryan Nijboer | 3-6,4-6 |
| ITF M15 Alkmaar | 2023/06/30 12:05 | Ryan Nijboer v Sander Jong | 3-6,4-6 |
| ITF M15 Alkmaar | 2023/06/29 10:30 | Ryan Nijboer v Teun Rozenberg | 6-4,6-7,6-3 |
| ITF M15 Alkmaar | 2023/06/28 11:40 | Ryan Nijboer v Nicolas Kobelt | 6-2,6-1 |
| ITF M15 Duffel | 2023/06/17 11:15 | Ryan Nijboer v Jeremy Jahn | 2-6,1-6 |
| ITF M15 Duffel | 2023/06/16 11:00 | Ryan Nijboer v John Sperle | 6-4,4-6,6-3 |
| Challenger Karlsruhe | 2023/07/03 09:00 | Oriol Roca Batalla v Viacheslav Bielinskyi | 6-4,6-3 |
| Challenger Karlsruhe | 2023/07/02 09:00 | Viacheslav Bielinskyi v Timo Legout | 3-6,6-1,6-3 |
| ITF M15 Saarlouis | 2023/06/22 09:00 | Viacheslav Bielinskyi v Liam Gavrielides | 3-6,5-7 |
| ITF M15 Saarlouis | 2023/06/20 11:30 | Viacheslav Bielinskyi v Dominik Boehler | 6-2,6-2 |
| ITF M15 Brcko | 2023/05/25 11:15 | Vit Kalina v Viacheslav Bielinskyi | 2-6,3-6 |
| ITF M15 Brcko | 2023/05/24 13:35 | Viacheslav Bielinskyi v David Pichler | 3-6,7-5,6-2 |
| ITF M15 Prijedor | 2023/05/21 10:00 | Andrej Nedic v Viacheslav Bielinskyi | 6-4,2-6,6-1 |
| ITF M15 Prijedor | 2023/05/20 10:30 | Viacheslav Bielinskyi v Dusan Obradovic | 6-3,6-4 |