Stadium: 2 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2023/06/06 12:10 | Nikolay Nedelchev v Arthur Bouquier | 6-3,4-6,3-6 |
| ITF M15 Monastir | 2023/05/30 13:40 | Alexis Gautier v Nikolay Nedelchev | 6-3,6-7,6-4 |
| ITF M15 Monastir | 2023/05/25 11:15 | Hady Habib v Nikolay Nedelchev | 6-4,7-5 |
| ITF M25 Valldoreix | 2023/05/09 08:00 | Aleksandr Braynin v Nikolay Nedelchev | 7-6,6-2 |
| ITF M25 Valldoreix | 2023/05/08 10:30 | Alvaro Bueno Gil v Nikolay Nedelchev | 4-6,1-6 |
| ITF M25 Valldoreix | 2023/05/07 14:30 | Darius Florin Pop v Nikolay Nedelchev | 1-6,2-6 |
| ITF M25 Sabadell | 2023/05/02 08:00 | Max Alcala Gurri v Nikolay Nedelchev | 6-0,7-6 |
| ITF M25 Sabadell | 2023/05/01 08:00 | Toprak Avcibasi v Nikolay Nedelchev | 2-6,6-1,8-10 |
| ITF M25 Santander | 2019/08/21 10:15 | Juan Sengariz Carral v Carlos Sanchez Jover | 1-6,2-6 |