Stadium: Celje 1 Round: 54 Ground: Clay
| ITF M15 Porec | 2023/03/05 09:00 | Jan Kupcic v Ivan Kremenchutskyi | 6-0,6-0 |
| ITF M25 Dubrovnik | 2023/04/04 07:00 | Andrej Nedic v Ivan Kremenchutskyi | 7-6,6-0 |
| ITF M25 Dubrovnik | 2023/04/03 08:45 | Dimitrije Zubac v Ivan Kremenchutskyi | 1-6,1-6 |
| ITF M25 Opatija | 2023/03/21 09:00 | Ivan Kremenchutskyi v Niklas Waldner | 6-4,3-6,8-10 |
| ITF M25 Opatija | 2023/03/19 10:30 | Ivan Kremenchutskyi v Jeremy Gschwendtner | 1-6,6-3,10-8 |
| ITF M15 Rovinj | 2023/03/12 09:00 | Sergi Perez Contri v Ivan Kremenchutskyi | 6-0,6-1 |
| ITF M15 Porec | 2023/03/05 09:00 | Jan Kupcic v Ivan Kremenchutskyi | 6-0,6-0 |
| ITF M25 Al Zahra | 2023/01/25 09:00 | Ivan Kremenchutskyi v Niels Visker | 2-6,1-6 |
| ITF M25 Doha | 2023/01/15 16:30 | Jack Karlsson Winstrand v Ivan Kremenchutskyi | 6-4,6-4 |
| ITF M25 Opatija | 2023/03/19 10:30 | Andrea Bolla v Jan Kupcic | 6-3,2-6,10-3 |
| ITF M15 Rovinj | 2023/03/14 11:20 | Pavel Nejedly v Jan Kupcic | 6-3,7-5 |
| ITF M15 Rovinj | 2023/03/13 09:00 | Jan Kupcic v Gabriel Matuszewski | 6-2,4-6,10-8 |
| ITF M15 Rovinj | 2023/03/12 12:00 | Hans Peter Kaufmann v Jan Kupcic | 1-6,6-7 |
| ITF M15 Porec | 2023/03/07 10:40 | Jan Kupcic v Alessio Zanotti | 4-6,3-6 |
| ITF M15 Porec | 2023/03/06 09:00 | Jan Kupcic v Antonio Voljavec | 6-2,6-1 |
| ITF M15 Porec | 2023/03/05 09:00 | Jan Kupcic v Ivan Kremenchutskyi | 6-0,6-0 |
| ITF M15 Sharm El Sheikh | 2023/02/19 15:30 | Sebastian Sorger v Jan Kupcic | 6-4,6-4 |