Stadium: Court 1 Round: 25 Ground: Clay
| ITF M25 La Nucia | 2023/06/01 07:00 | Ryan Nijboer v Jaime Caldes | 6-2,6-7,6-1 |
| ITF M25 Oviedo | 2023/08/30 10:00 | Carlos Lopez Montagud v Jaime Caldes | 6-0,6-1 |
| ITF M25 Oviedo | 2023/08/29 18:20 | Jaime Caldes v Kirill Mishkin | 6-3,7-5 |
| ITF M25 Oviedo | 2023/08/27 16:00 | Jaime Caldes v Asier Civera Martinez | 6-3,6-2 |
| ITF M25 Santander | 2023/08/23 12:05 | Jaime Caldes v Imanol L Morillo | 2-6,6-7 |
| ITF M25 Santander | 2023/08/20 14:30 | Jaime Caldes v Aaron Gil Garcia | 6-4,6-4 |
| ITF M15 Xativa | 2023/08/02 17:15 | Michiel de Krom v Jaime Caldes | 6-1,4-6,5-7 |
| ITF M15 Xativa | 2023/08/01 07:00 | Jaime Caldes v Albert Pedrico Kravtsov | 6-1,5-7,10-3 |
| ITF M15 Xativa | 2023/07/31 09:30 | Jaime Caldes v Jorge Plans | 6-4,6-2 |
| ITF M25 Oviedo | 2023/09/02 10:00 | Carlos Lopez Montagud v Ryan Nijboer | 6-1,3-6,6-4 |
| ITF M25 Oviedo | 2023/09/01 08:00 | Gian Marco Moroni v Ryan Nijboer | 5-7,2-6 |
| ITF M25 Oviedo | 2023/08/31 08:00 | Ryan Nijboer v Dali Blanch | 6-3,6-1 |
| ITF M25 Santander | 2023/08/24 13:30 | Ryan Nijboer v Svyatoslav Gulin | 6-3,6-7,3-6 |
| ITF M25 Santander | 2023/08/23 17:00 | Ryan Nijboer v Sergio Callejon Hernando | 6-1,7-6 |
| ITF M25 Santander | 2023/08/22 11:10 | Ryan Nijboer v Mikel Martinez | 6-1,6-2 |
| 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 |