Stadium: Court 1 Round: 62 Ground: Clay
| ITF M15 Litija | 2023/06/14 12:10 | Nikola Basic v Olaf Pieczkowski | 0-6,2-6 |
| ITF M15 Litija | 2023/06/13 07:00 | Nikola Basic v Igor Dudun | 6-1,6-4 |
| ITF M15 Litija | 2023/06/12 11:00 | Nikola Basic v Leon Benedict | 6-3,6-0 |
| ITF M15 Sarajevo | 2023/06/08 06:55 | Jakub Paul v Nikola Basic | 6-1,6-0 |
| ITF M15 Sarajevo | 2023/06/07 08:50 | Samuel Puskar v Nikola Basic | 5-7,6-3,3-6 |
| ITF M15 Sarajevo | 2023/06/06 11:50 | Nikola Basic v Josip Simundza | 2-6,6-3,10-4 |
| ITF M15 Sarajevo | 2023/06/05 08:00 | Nikola Basic v Andrej Djokic | 6-2,6-2 |
| ITF M25 Kiseljak | 2023/05/30 09:45 | Nikola Basic v Joao Eduardo Schiessl | 4-6,0-6 |