Stadium: Court 2 Round: 28 Ground: Clay
| ITF M15 Prijedor | 2023/05/20 07:00 | Ergi Kirkin v Stefan Popovic | 4-6,2-6 |
| ITF M15 Prijedor | 2023/05/19 10:45 | Nikola Basic v Stefan Popovic | 2-6,5-7 |
| 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 Prijedor | 2023/05/20 07:00 | Petr Brunclik v Andrej Nedic | 1-6,6-1,4-10 |
| ITF M15 Prijedor | 2023/05/18 15:20 | Andrej Nedic v Alexandre Aubriot | 6-0,6-0 |
| ITF M15 Prijedor | 2023/05/15 09:00 | Andrej Nedic v Kirill Mishkin | 6-2,6-2 |
| ITF M15 Doboj | 2023/05/10 11:45 | Andrej Nedic v Mirko Martinez | 3-6,6-4,4-6 |
| ITF M15 Osijek | 2023/05/04 12:55 | Andrej Nedic v Mohamed Safwat | 3-6,4-6 |
| ITF M15 Osijek | 2023/05/03 12:15 | Andrej Nedic v Aleksa Pisaric | 6-4,6-2 |
| ITF M15 Osijek | 2023/05/02 10:15 | Andrej Nedic v Tim Heger | 6-2,6-0 |
| ITF M15 Osijek | 2023/05/01 12:00 | Andrej Nedic v Federico Mirgone | 7-5,6-1 |