Stadium: Sportna Dvorana Golovec Round: 54 Ground: Clay
| ITF M15 Kursumlijska Banja | 2023/06/23 11:55 | Zsombor Velcz v Andrej Nedic | 3-6,6-2,3-6 |
| ITF M15 Kursumlijska Banja | 2023/06/22 07:30 | Hynek Barton v Zsombor Velcz | 6-2,6-7,1-6 |
| ITF M15 Kursumlijska Banja | 2023/06/21 09:20 | Patrick Schoen v Zsombor Velcz | 4-6,1-6 |
| ITF M15 Kursumlijska Banja | 2023/06/20 07:25 | Nicolas H Cuesta v Zsombor Velcz | 3-6,0-6 |
| ITF M15 Kursumlijska Banja | 2023/06/18 11:00 | Gheorghe Claudiu Schinteie v Zsombor Velcz | 3-6,1-6 |
| ITF M15 Nyiregyhaza | 2023/06/09 11:00 | Zsombor Velcz v Tadeas Paroulek | 2-6,1-6 |
| ITF M15 Nyiregyhaza | 2023/06/08 08:00 | Jiri Barnat v Zsombor Velcz | 6-3,6-7,5-7 |
| ITF M15 Nyiregyhaza | 2023/06/07 09:30 | Nikita Mashtakov v Zsombor Velcz | 6-3,3-6,0-6 |
| ITF M15 Store | 2023/06/19 14:15 | Jaka Protic Zakelj v Timofey Stepanov | 2-6,5-7 |
| ITF M15 Litija | 2023/06/12 07:00 | Jaka Protic Zakelj v Timofey Stepanov | 5-7,4-6 |
| ITF M15 Warmbad-Villach | 2023/05/21 07:00 | Jaka Protic Zakelj v Leonardo Mazzucchelli | 6-0,2-6,6-10 |
| ITF M15 Krsko | 2023/05/18 14:35 | Jaka Protic Zakelj v Lucas Poullain | 0-6,0-6 |
| ITF M15 Krsko | 2023/05/17 11:00 | Lun Obrul v Jaka Protic Zakelj | 2-6,3-6 |
| ITF M15 Krsko | 2023/05/15 08:00 | Liam Puttergill v Jaka Protic Zakelj | 2-6,6-2,7-10 |
| ITF M15 Rovinj | 2023/03/12 12:00 | Josip Simundza v Jaka Protic Zakelj | 6-0,6-1 |
| ITF M15 Porec | 2023/03/06 08:55 | Jaka Protic Zakelj v Alessio Zanotti | 2-6,0-6 |