Stadium: Celje 1 Round: 54 Ground: Clay
| ITF M15 Vaasa | 2023/06/08 08:00 | Luca Giacomini v Edison Ambarzumjan | 6-0,6-1 |
| ITF M15 Vaasa | 2023/06/07 07:00 | Edison Ambarzumjan v Roni Mikael Hietaranta | 6-4,6-4 |
| ITF M15 Vaasa | 2023/06/06 07:00 | Edison Ambarzumjan v Ying Hou | 6-4,6-4 |
| ITF M15 Krsko | 2023/05/17 11:00 | Attila Dominik Boros v Edison Ambarzumjan | 7-5,6-2 |
| ITF M15 Krsko | 2023/05/15 10:00 | Paolo Schiavone v Edison Ambarzumjan | 1-6,0-6 |
| UTR Pro Beograd | 2023/04/23 07:30 | Zoran Ludoski v Edison Ambarzumjan | 1-6,5-7 |
| UTR Pro Beograd | 2023/04/22 06:00 | Nikola Kolyachev v Edison Ambarzumjan | 0-3 |
| UTR Pro Beograd | 2023/04/21 10:09 | Janos Fekete v Edison Ambarzumjan | 6-4,6-3 |
| ITF M15 Litija | 2023/06/15 11:50 | Sebastian Prechtel v Josip Simundza | 7-5,6-1 |
| ITF M15 Litija | 2023/06/14 07:55 | Josip Simundza v Matic Kriznik | 7-6,6-1 |
| ITF M15 Litija | 2023/06/13 07:00 | Josip Simundza v Matic Dimic | 6-3,6-2 |
| ITF M15 Litija | 2023/06/12 07:00 | Zak Talic v Josip Simundza | 1-6,3-6 |
| ITF M15 Sarajevo | 2023/06/06 11:50 | Nikola Basic v Josip Simundza | 2-6,6-3,10-4 |
| ITF M15 Osijek | 2023/05/03 09:40 | Josip Simundza v Mohamed Safwat | 1-6,1-6 |
| ITF M25 Split | 2023/04/20 10:45 | Gergely Madarasz v Josip Simundza | 7-5,6-2 |
| ITF M25 Split | 2023/04/20 07:30 | Paul Woerner v Josip Simundza | 3-6,2-6 |