Stadium: Court 2 Round: 25 Ground: Clay
| ITF M25 La Nucia | 2023/05/31 09:35 | Ryan Nijboer v Noah Regas | 6-2,6-0 |
| ITF M25 La Nucia | 2023/05/30 08:00 | Ryan Nijboer v Alberto A Fernandez | 6-0,6-1 |
| ITF M15 Bucharest | 2023/05/26 10:10 | Petr Nesterov v Ryan Nijboer | 7-5,6-2 |
| ITF M15 Bucharest | 2023/05/25 10:05 | Pedro Iamachkine v Ryan Nijboer | 5-7,3-6 |
| ITF M15 Bucharest | 2023/05/24 09:25 | Vito Dell'Elba v Ryan Nijboer | 1-6,0-6 |
| ITF M15 Prijedor | 2023/05/18 08:45 | Ryan Nijboer v Petr Brunclik | 4-6,6-4,3-10 |
| ITF M15 Doboj | 2023/05/13 07:30 | Marat Sharipov v Ryan Nijboer | 6-1,6-3 |
| ITF M15 Doboj | 2023/05/12 07:00 | Kirill Mishkin v Ryan Nijboer | 2-6,0-6 |
| ITF M25 La Nucia | 2023/05/31 10:00 | Tiago Pereira v Jaime Caldes | 6-1,6-4 |
| ITF M25 La Nucia | 2023/05/29 17:00 | Toprak Avcibasi v Jaime Caldes | 1-6,1-6 |
| ITF M15 Antalya | 2023/05/19 07:30 | Dragos Nicolae Madaras v Jaime Caldes | 6-4,6-0 |
| ITF M15 Antalya | 2023/05/18 06:50 | Radovan Michalik v Jaime Caldes | 1-6,1-6 |
| ITF M15 Antalya | 2023/05/17 08:40 | Jaime Caldes v Koray Kirci | 6-3,6-2 |
| ITF M15 Antalya | 2023/05/16 07:00 | Jaime Caldes v Daniil Savelev | 6-2,6-2 |
| ITF M15 Antalya | 2023/05/15 09:10 | Jaime Caldes v Umut Akkoyun | 6-1,6-2 |
| ITF M15 Antalya | 2023/05/09 10:05 | Edas Butvilas v Jaime Caldes | 6-3,6-4 |