Stadium: Court 4 Round: 62 Ground: Clay
| ITF M25 Maribor | 2023/09/06 07:30 | Gal Emersic Potocnik v Nikola Basic | 3-6,6-7 |
| ITF M25 Maribor | 2023/08/31 08:40 | Nikola Basic v Sandro Kopp | 5-7,7-6,0-6 |
| ITF M25 Maribor | 2023/08/30 13:30 | Patrik Jurina v Nikola Basic | 3-6,4-6 |
| ITF M25 Lesa | 2023/08/22 10:25 | Niccolo Catini v Nikola Basic | 6-2,4-6,6-3 |
| ITF M25 Lesa | 2023/08/21 10:55 | Nikola Basic v Gian Marco Ortenzi | 6-7,3-6 |
| ITF M25 Lesa | 2023/08/20 08:00 | Nikola Basic v Christian Fellin | 6-1,6-4 |
| ITF M25 Osijek | 2023/08/09 13:00 | Nikola Basic v Matej Dodig | 1-6,2-6 |
| ITF M15 Litija | 2023/06/14 12:10 | Nikola Basic v Olaf Pieczkowski | 0-6,2-6 |
| ITF M15 Pirot | 2023/09/04 10:00 | Antonio Massara v Aleksandar Mihailovic | 6-3,6-1 |
| ITF M15 Kursumlijska Banja | 2023/08/28 09:30 | Stefan Vujic v Aleksandar Mihailovic | 6-1,4-6,10-3 |
| ITF M15 Kursumlijska Banja | 2023/08/27 07:00 | Francesco Mineo Mineo v Aleksandar Mihailovic | 6-4,2-6,4-10 |
| ITF M25 Osijek | 2023/08/07 14:05 | Aleksandar Mihailovic v Marco Berti | 6-3,4-6,7-10 |
| ITF M25 Osijek | 2023/08/07 07:30 | Aleksandar Mihailovic v Shendrit Deari | 4-6,6-4,17-15 |
| ITF M15 Novi Sad | 2023/07/30 08:30 | Aleksandar Mihailovic v Milan Drinic | 5-7,1-6 |
| ITF M15 Novi Sad | 2023/07/24 11:10 | Novak Novakovic v Aleksandar Mihailovic | 7-6,6-1 |
| ITF M15 Novi Sad | 2023/07/23 13:00 | Aleksandar Mihailovic v Andrej Krajcik | 6-0,0-6,10-7 |