Estadio: Jezero 1 Round: 62 Ground: Clay
| ITF M25 Telfs | 2023/07/16 07:00 | Stepan Pecak v Martin Zeljenka | 6-4,1-6,10-2 |
| 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 Nyíregyháza | 2023/06/05 09:30 | Peter Nad v Martin Zeljenka | 7-5,6-3 |
| ITF M15 Nyíregyháza | 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 |
| ITF M15 Novi Sad | 2023/07/24 07:30 | Marcell Bartakovics v Jan Kupcic | 4-6,4-6 |
| ITF M25 Pardubice | 2022/09/19 09:00 | Daniel Siniakov v Marcell Bartakovics | 6-7,6-2,10-4 |
| ITF M25 Maribor | 2022/09/06 07:30 | Marcell Bartakovics v Sandro Szic | 0-6,1-6 |
| ITF M25 Maribor | 2022/09/05 09:15 | Miha Vetrih v Marcell Bartakovics | 3-6,3-6 |
| ITF M25 Maribor - Clasificación | 2022/09/04 11:30 | Morris Kipcak v Marcell Bartakovics | 3-6,0-6 |
| ITF M25 Szabolcsveresmart | 2022/08/29 10:00 | Sandro Szic v Marcell Bartakovics | 6-2,6-3 |
| ITF M25 Szabolcsveresmart | 2022/08/28 13:00 | Csongor Hejjas v Marcell Bartakovics | 2-6,1-6 |
| ITF M15 Celje | 2022/08/21 10:00 | Daniil Savelev v Marcell Bartakovics | 5-7,6-4,10-8 |