Stadium: Court 2 Round: 28 Ground: Clay
| ITF M15 Brcko | 2023/05/26 14:00 | Peter Benjamin Privara v Aleksa Mardjonovic | 6-1,6-7,4-6 |
| ITF M15 Brcko | 2023/05/25 09:15 | Alexandre Aubriot v Aleksa Mardjonovic | 2-6,3-6 |
| ITF M15 Brcko | 2023/05/24 07:30 | Aleksa Mardjonovic v Aldin Setkic | 2-6,7-6,7-5 |
| ITF M15 Brcko | 2023/05/22 09:30 | Zak Talic v Aleksa Mardjonovic | 4-6,1-6 |
| ITF M15 Osijek | 2023/04/30 14:00 | Federico Mirgone v Aleksa Mardjonovic | 6-3,2-6,10-5 |
| UTR Pro Beograd | 2023/04/23 06:00 | Maxime Hamou v Aleksa Mardjonovic | 3-6,6-3,6-6 |
| UTR Pro Beograd | 2023/04/22 07:30 | Aleksa Mardjonovic v Radomir Tomic | 6-2,6-2 |
| UTR Pro Beograd | 2023/04/20 08:40 | Aleksa Mardjonovic v Hugo Pierre | 6-2,7-5 |
| ITF M15 Brcko | 2023/05/25 12:05 | Stefan Popovic v Adam Moundir | 6-3,6-3 |
| ITF M15 Brcko | 2023/05/24 12:25 | Daniel Rodrigues v Stefan Popovic | 1-6,3-6 |
| ITF M15 Prijedor | 2023/05/20 10:45 | Stefan Popovic v Andrej Nedic | 1-6,0-6 |
| 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 |