Stadium: Court 2 Round: 26 Ground: Clay
| ITF M15 - Prijedor | 2023/05/18 16:20 | Drazen Petrovic v Nikola Basic | 7-5,0-6,7-10 |
| ITF M15 - Prijedor | 2023/05/18 07:00 | Nikola Basic v Vitali Shvets | 6-2,6-1 |
| ITF M15 - Prijedor | 2023/05/17 09:15 | Nikola Basic v Marko Ilic | 6-3,6-4 |
| ITF M15 - Doboj | 2023/05/10 08:00 | Nikola Basic v Lautaro Agustin Falabella | 3-6,6-4,5-7 |
| ITF M15 - Doboj | 2023/05/08 10:30 | Alen Bill v Nikola Basic | 2-6,4-6 |
| ITF M15 - Osijek | 2023/05/03 10:05 | Lautaro Agustin Falabella v Nikola Basic | 6-1,7-6 |
| ITF M25 - Split | 2023/04/19 08:00 | Nikola Basic v Eric Vanshelboim | 3-6,2-6 |
| ITF M25 - Dubrovnik | 2023/04/05 07:00 | Nikola Basic v Sebastian Gima | 0-6,1-6 |
| ITF M15 - Prijedor | 2023/05/18 14:15 | Lucio Ratti v Stefan Popovic | 2-6,3-6 |
| ITF M15 - Doboj | 2023/05/13 07:30 | Ergi Kirkin v Stefan Popovic | 2-6,6-3,6-4 |
| ITF M15 - Doboj | 2023/05/12 08:35 | Lautaro Agustin Falabella v Stefan Popovic | 6-3,0-6,0-6 |
| ITF M15 - Doboj | 2023/05/10 15:20 | Radomir Tomic v Stefan Popovic | 3-6,2-6 |
| ITF M15 - Kursumlijska Banja | 2023/05/04 09:05 | Stefan Popovic v Oleksandr Ovcharenko | 5-7,0-6 |
| ITF M15 - Kursumlijska Banja | 2023/05/03 08:00 | Stefan Popovic v Simone Agostini | 3-6,6-3,6-0 |
| ITF M15 - Kursumlijska Banja | 2023/04/26 11:10 | Stefan Popovic v Lucas Bouquet | 4-6,3-6 |
| UTR Pro - Beograd | 2023/04/17 08:08 | Nazim Makhlouf v Stefan Popovic | 3-6,1-6 |