Stadium: Court 1 Round: 26 Ground: Clay
| ITF M15 Telde | 2023/04/18 12:20 | Ryan Nijboer v Aleksandr Braynin | 6-2,5-7,6-4 |
| ITF M15 Telde | 2023/04/12 08:00 | Ryan Nijboer v Georgii Kravchenko | 2-6,4-6 |
| ITF M25 Reus | 2023/04/06 11:00 | Ryan Nijboer v Alex M Pujolras | 4-6,5-7 |
| ITF M25 Reus | 2023/04/05 07:55 | Ryan Nijboer v Pedro Araujo | 5-7,6-2,6-1 |
| Challenger Las Franquesas del Valles | 2023/03/20 11:15 | Billy Harris v Ryan Nijboer | 6-3,3-6,6-2 |
| Challenger Las Franquesas del Valles | 2023/03/19 15:40 | Ryan Nijboer v Maxime Chazal | 6-4,7-5 |
| ITF M15 Sharm El Sheikh | 2023/03/16 10:10 | Ryan Nijboer v Lukas Pokorny | 4-6,1-6 |
| ITF M15 Sharm El Sheikh | 2023/03/15 11:55 | Samuel Vincent Ruggeri v Ryan Nijboer | 6-7,4-6 |
| ITF M15 Telde | 2023/04/19 08:00 | Yaroslav Demin v Alejandro Manzanera Pertusa | 4-6,6-3,4-6 |
| ITF M25 Reus | 2023/04/08 08:00 | Alejandro Manzanera Pertusa v Miguel Damas | 4-6,1-6 |
| ITF M25 Reus | 2023/04/07 10:45 | Alejandro Manzanera Pertusa v Nikolas Sanchez Izquierdo | 7-5,1-6,6-1 |
| ITF M25 Reus | 2023/04/06 08:30 | Georgii Kravchenko v Alejandro Manzanera Pertusa | 6-7,6-7 |
| ITF M25 Reus | 2023/04/05 08:00 | Alejandro Manzanera Pertusa v Maxime Mora | 6-3,6-4 |
| ITF M25 Reus | 2023/04/04 08:00 | Alejandro Manzanera Pertusa v Noah Lopez | 6-2,6-3 |
| ITF M25 Reus | 2023/04/03 10:30 | Alejandro Manzanera Pertusa v Alen Moritz Hodzic | 6-4,6-3 |
| ITF M25 Reus | 2023/04/02 12:00 | Alejandro Manzanera Pertusa v Daniel L Salmeron | 6-0,6-4 |