Stadium: Court 8 Round: 62 Ground: Clay
| ITF M15 Kamen | 2023/06/26 15:00 | Stepan Pecak v Matyas Cerny | 5-7,3-6 |
| ITF M15 Kamen | 2023/06/26 08:00 | Nico Hornitschek v Stepan Pecak | 6-7,1-6 |
| ITF M25 Poprad | 2023/06/19 08:00 | Radovan Michalik v Stepan Pecak | 6-0,7-6 |
| ITF M25 Poprad | 2023/06/18 11:00 | Mykyta Riepkin v Stepan Pecak | 2-6,2-6 |
| ITF M25 Risskov/Aarhus | 2023/06/13 10:15 | Lewie Lane v Stepan Pecak | 6-0,6-3 |
| ITF M25 Risskov/Aarhus | 2023/06/12 08:00 | Jan Simonsson v Stepan Pecak | 7-5,2-6,9-11 |
| ITF M25 Risskov/Aarhus | 2023/06/11 09:25 | Samuel Veikkolainen Jansson v Stepan Pecak | 3-6,2-6 |
| ITF M25 Jablonec Nad Nisou | 2023/05/28 09:00 | Jiri Krouzek v Stepan Pecak | 1-6,7-5,10-5 |
| ITF M15 Kursumlijska Banja | 2023/06/19 09:25 | Marko Stakusic v Martin Zeljenka | 6-3,6-3 |
| ITF M15 Kursumlijska Banja | 2023/06/18 07:00 | Martin Zeljenka v Dmitrii Vasilev | 6-3,6-4 |
| ITF M15 Nyiregyhaza | 2023/06/05 09:30 | Peter Nad v Martin Zeljenka | 7-5,6-3 |
| ITF M15 Nyiregyhaza | 2023/06/04 14:30 | Gabor Hornung v Martin Zeljenka | 6-7,7-5,5-10 |
| ITF M15 Osijek | 2023/05/02 10:30 | Emanuele Mazzeschi v Martin Zeljenka | 6-3,6-3 |
| ITF M15 Kursumlijska Banja | 2023/04/24 09:35 | Miha Vetrih v Martin Zeljenka | 4-6,6-4,10-5 |
| ITF M25 Opatija | 2023/03/19 08:00 | Martin Zeljenka v Marko Andrejic | 0-6,2-6 |
| Challenger Szekesfehervar | 2023/03/12 09:00 | Benjamin Hassan v Martin Zeljenka | 6-1,7-6 |