Stadium: Court 4 Round: 25 Ground: Clay
| ITF M15 - Xativa | 2023/08/05 15:00 | Carlos Lopez Montagud v Ryan Nijboer | 6-1,6-1 |
| ITF M15 - Xativa | 2023/08/04 16:25 | Ryan Nijboer v Sergio Callejon Hernando | 6-2,6-3 |
| ITF M15 - Xativa | 2023/08/03 16:30 | Ryan Nijboer v Alejandro T Alvarez | 6-1,6-3 |
| ITF M15 - Xativa | 2023/08/01 15:30 | Ryan Nijboer v Toprak Avcibasi | 7-6,6-7,6-4 |
| ITF M25 - Denia | 2023/07/26 16:25 | Sergi Perez Contri v Ryan Nijboer | 6-4,6-3 |
| Challenger Amersfoort | 2023/07/17 10:55 | Niels Visker v Ryan Nijboer | 7-6,3-6,7-5 |
| Challenger Amersfoort | 2023/07/16 14:55 | Ryan Nijboer v Yanaki Milev | 6-0,6-3 |
| ITF M25 - Kassel | 2023/07/13 14:25 | Ryan Nijboer v Andrew Paulson | 6-7,4-6 |
| ITF M25 - Santander | 2023/08/20 09:00 | Samuel M Arjona v Mikel Martinez | 7-6,0-6,13-15 |
| ITF M15 - Xativa | 2023/08/02 07:30 | Andrea Bolla v Mikel Martinez | 3-6,7-6,6-2 |
| ITF M15 - Xativa | 2023/08/01 08:00 | Vicente O Moratalla v Mikel Martinez | 2-6,1-6 |
| ITF M15 - Xativa | 2023/07/31 15:00 | Joan Torres Espinosa v Mikel Martinez | 2-6,3-6 |
| ITF M15 - Xativa | 2023/07/30 15:00 | Lucca Helguera Casado v Mikel Martinez | 3-6,3-6 |
| ITF M25 - Denia | 2023/07/25 13:55 | Facundo Juarez v Mikel Martinez | 6-3,6-1 |
| ITF M25 - Getxo | 2023/07/03 07:55 | Pablo Masjuan Ginel v Mikel Martinez | 6-2,6-1 |
| ITF M25 - Getxo | 2023/07/02 08:00 | Daniil Golubev v Mikel Martinez | 2-6,1-6 |