Stadium: Court 3 Round: 27 Ground: Clay
| ITF M15 Sabadell | 2022/09/28 10:50 | Ryan Nijboer v Lopez San Martin, Alvaro | 6-4,1-6,1-6 |
| ITF M15 Madrid | 2022/09/10 10:45 | Lopez San Martin, Alvaro v Ryan Nijboer | 3-6,5-7 |
| ITF M25 Sabadell | 2023/09/28 08:55 | Ryan Nijboer v John Sperle | 6-3,6-1 |
| ITF M25 Sabadell | 2023/09/27 08:25 | Ryan Nijboer v Benjamin Winter Lopez | 7-6,6-1 |
| ITF M15 Madrid | 2023/09/10 09:00 | Ryan Nijboer v Pablo Masjuan Ginel | 6-4,6-3 |
| 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 Sabadell | 2023/09/28 09:00 | Gabashvili, Teimuraz v Lopez San Martin, Alvaro | 5-7,3-6 |
| ITF M25 Sabadell | 2023/09/27 08:30 | Ian Luca Cervantes Tomas v Lopez San Martin, Alvaro | 2-6,2-6 |
| ITF M25 Santander | 2023/08/24 10:00 | Lopez San Martin, Alvaro v Imanol L Morillo | 6-7,7-6,4-6 |
| ITF M25 Santander | 2023/08/23 10:00 | Lopez San Martin, Alvaro v Alejandro Juan Mano | 7-5,6-4 |
| ITF M25 Santander | 2023/08/22 09:55 | Lopez San Martin, Alvaro v Tomas C Abasolo | 6-1,4-6,6-3 |
| Cordenons, Italy | 2023/08/08 13:25 | Lopez San Martin, Alvaro v Enrico Dalla Valle | 2-6,4-6 |
| Braunchsweig, Germany | 2023/07/09 14:30 | Lopez San Martin, Alvaro v Yanaki Milev | 6-3,6-7,4-6 |
| Challenger Troyes | 2023/07/03 15:55 | Lopez San Martin, Alvaro v Mathys Erhard | 6-2,1-6,4-6 |