Stadium: Court 6 Round: 62 Ground: Clay
| ITF - M25 Zlatibor | 2023/09/24 10:30 | Alexander Chepik v Jaka Protic Zakelj | 4-6,4-6 |
| ITF - M25 Maribor | 2023/09/05 08:00 | Gregor Ramskogler v Jaka Protic Zakelj | 7-6,6-4 |
| ITF - M25 Maribor | 2023/09/04 08:00 | Tino Kovacic v Jaka Protic Zakelj | 4-6,2-6 |
| ITF - M25 Maribor | 2023/08/30 13:55 | Jaka Protic Zakelj v Marko Topo | 5-7,6-4,5-7 |
| ITF M25 - Osijek | 2023/08/08 10:05 | Marcell Bartakovics v Jaka Protic Zakelj | 7-6,2-6,13-11 |
| ITF M25 - Osijek | 2023/08/07 12:15 | Nazar Oliynykov v Jaka Protic Zakelj | 1-6,5-7 |
| ITF M25 - Osijek | 2023/08/07 07:30 | Jacques-Kai Inoue v Jaka Protic Zakelj | 6-7,0-6 |
| ITF M15 - Novi Sad | 2023/07/31 11:00 | Jaka Protic Zakelj v Bautista Vilicich | 2-6,2-6 |
| ITF - M15 Kursumlijska Banja | 2023/09/18 09:30 | Alexandar Balj v Andrea Fiorentini | 2-6,5-7 |
| ITF - M15 Kursumlijska Banja | 2023/09/11 07:00 | Romeo Hadzimehmedovic v Alexandar Balj | 6-2,6-4 |
| ITF - M15 Kursumlijska Banja | 2023/09/10 09:30 | Alexandar Balj v Stefan Cizelj-Zivkovic | 6-2,6-2 |
| ITF - M15 Kursumlijska 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 Kursumlijska 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 Kursumlijska Banja | 2023/05/31 10:20 | Alexandar Balj v Gorazd Srbljak | 5-7,4-6 |