Stadium: Court 2 Round: 44 Ground: Clay
| ITF - M15 Kuršumlijska Banja | 2023/08/27 09:30 | Alen Mujakic v Alexandar Balj | 6-2,6-4 |
| ITF - M25 Osijek | 2023/08/07 13:55 | Alexandar Balj v Romeo Hadzimehmedovic | 2-6,5-7 |
| ITF - M15 Kuršumlijska Banja | 2023/06/19 07:30 | Alexandar Balj v Nicolas Villalon | 5-7,2-6 |
| ITF - M25 Skopje | 2023/06/04 07:00 | Alexandar Balj v Christos Keisidis | 4-6,2-6 |
| ITF - M15 Kuršumlijska Banja | 2023/05/31 10:20 | Alexandar Balj v Gorazd Srbljak | 5-7,4-6 |
| ITF - M15 Kuršumlijska Banja | 2023/05/23 14:00 | Kristjan Tamm v Alexandar Balj | 6-4,6-3 |
| ITF - M25 Kursumlijska Banja | 2023/05/14 09:30 | Pavle Daljev v Alexandar Balj | 6-1,6-0 |
| ITF - M25 Kursumlijska Banja | 2023/05/08 12:20 | Chukang Wang v Alexandar Balj | 6-4,6-4 |
| ITF - M15 Madrid | 2023/09/05 10:00 | Stefan Cizelj-Zivkovic v Luis Francisco | 3-6,2-6 |
| ITF - M15 Madrid | 2023/09/04 07:30 | Stefan Cizelj-Zivkovic v Cian Maguire | 6-3,6-7,10-6 |
| ITF - M15 Madrid | 2023/09/03 12:00 | Tommaso Carnevale-Miino v Stefan Cizelj-Zivkovic | 6-7,2-6 |
| ITF - M25 Gandia | 2023/07/17 10:00 | Patricio Alvarado v Stefan Cizelj-Zivkovic | 6-4,6-2 |
| ITF - M15 Kuršumlijska Banja | 2023/06/14 10:20 | Stefan Cizelj-Zivkovic v Dusan Obradovic | 4-6,1-6 |
| ITF - M25 Kursumlijska Banja | 2023/06/06 10:40 | Stefan Cizelj-Zivkovic v Novak Novakovic | 1-6,1-6 |
| ITF - M25 Kursumlijska Banja | 2023/06/05 15:10 | Marko Andrejic v Stefan Cizelj-Zivkovic | 3-6,3-6 |
| ITF - M25 Kursumlijska Banja | 2023/06/04 13:00 | Charles Dossetter v Stefan Cizelj-Zivkovic | 2-6,0-6 |