Stadium: Court 4 Round: 28 Ground: Clay
| ITF - M15 Madrid | 2023/09/08 09:25 | Mohamed Safwat v Ryan Nijboer | 5-7,3-6 |
| ITF - M15 Madrid | 2023/09/07 08:00 | Gabriele Bosio v Ryan Nijboer | 1-6,5-7 |
| ITF - M15 Madrid | 2023/09/06 13:35 | Jaime Caldes v Ryan Nijboer | 2-6,6-3,1-6 |
| 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 - M15 Madrid | 2023/09/08 11:40 | Carlos Gimeno Valero v Alejandro Manzanera Pertusa | 6-1,6-3 |
| ITF - M15 Madrid | 2023/09/07 07:55 | Carlos Gimeno Valero v Mateo Luis Alvarez Sarmiento | 6-7,6-1,6-2 |
| ITF - M15 Madrid | 2023/09/06 10:00 | Amr Asrawy v Carlos Gimeno Valero | 6-7,1-6 |
| ITF - M25 Oviedo | 2023/09/01 08:00 | Carlos Gimeno Valero v Carlos Lopez Montagud | 0-6,5-7 |
| ITF - M25 Oviedo | 2023/08/31 11:10 | Carlos Gimeno Valero v Imanol L Morillo | 5-6 |
| ITF - M25 Oviedo | 2023/08/30 14:30 | Sergio Callejon Hernando v Carlos Gimeno Valero | 1-6,4-6 |
| ITF - M25 Oviedo | 2023/08/30 11:45 | Carlos Gimeno Valero v Illya Maksymchuk | 6-3,6-2 |
| ITF - M25 Santander | 2023/08/22 13:00 | Julio Cesar Porras v Carlos Gimeno Valero | 6-4,2-6,6-3 |