Stadium: Sportna Dvorana Golovec Round: 54 Ground: Clay
| ITF M15 - Celje | 2023/06/26 11:45 | Zsombor Velcz v Jaka Protic Zakelj | 7-5,3-6,5-10 |
| 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 - Celje | 2023/06/26 08:00 | Jakub Katuch v Maximilian Homberg | 6-3,6-1 |
| ITF M25 - Poprad | 2023/06/18 11:00 | Jakub Katuch v Norbert Marosik | 6-7,1-6 |
| ITF M15 - Nyiregyhaza | 2023/06/05 09:30 | Leonid Sheyngezikht v Jakub Katuch | 6-4,7-6 |
| ITF M15 - Antalya | 2023/05/16 09:30 | Ivan Nedelko v Jakub Katuch | 6-1,6-4 |
| ITF M15 - Antalya | 2023/05/15 11:45 | Lucas Obeid v Jakub Katuch | 4-6,0-6 |
| ITF M15 - Antalya | 2023/05/14 12:00 | Siavash Shirdel v Jakub Katuch | 1-6,0-6 |
| ITF - M15 - Monastir | 2023/04/24 08:00 | Jakub Katuch v Max Wiskandt | 3-6,5-7 |
| ITF - M15 - Monastir | 2023/04/17 08:00 | Jakub Katuch v Antoine Vincent | 4-6,2-6 |