Stadium: Court 3 Round: 27 Ground: Clay
| ITF M15 Doboj | 2023/05/13 07:30 | Ergi Kirkin v Stefan Popovic | 2-6,6-3,6-4 |
| ITF M15 Prijedor | 2023/05/19 08:25 | Ergi Kirkin v Igor Gimenez | 3-6,7-5,11-9 |
| ITF M15 Prijedor | 2023/05/18 12:10 | Ergi Kirkin v Hayato Matsuoka | 6-1,6-0 |
| ITF M15 Doboj | 2023/05/14 12:00 | Ergi Kirkin v Sebastian Sorger | 7-6,7-5 |
| 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 07:00 | Ergi Kirkin v Hayato Matsuoka | 6-1,6-1 |
| ITF M15 Doboj | 2023/05/10 09:45 | Ergi Kirkin v Niccolo Ciavarella | 6-3,6-2 |
| Challenger Rome | 2023/04/23 13:40 | Ergi Kirkin v Alexander Weis | 2-6,7-5,5-7 |
| Challenger Roseto | 2023/04/19 11:50 | Santiago Rodriguez Taverna v Ergi Kirkin | 6-4,6-0 |
| 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 Kursumlijska Banja | 2023/04/26 11:10 | Stefan Popovic v Lucas Bouquet | 4-6,3-6 |