Stadium: Court 1 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Kottingbrunn | 2023/08/14 12:00 | Alfred Almasi v Maks Meh | 4-6,1-6 |
| ITF M15 Kottingbrunn | 2023/08/13 12:00 | Alfred Almasi v Adam Gabor Szoke | 6-2,6-4 |
| ITF M25 Kramsach | 2023/07/23 10:30 | Alfred Almasi v Martin Benes | 3-6,4-6 |
| ITF M25 Telfs | 2023/07/16 07:00 | Davide Galvanin v Alfred Almasi | 4-6,7-5,10-6 |
| ITF M25 Mungia | 2023/06/18 07:00 | Jorge Plans v Alfred Almasi | 6-4,6-3 |
| ITF M15 Nyiregyhaza | 2023/06/05 08:00 | Joan Busoms Puig v Alfred Almasi | 6-2,6-1 |
| ITF M15 Nyiregyhaza | 2023/06/04 10:30 | Siddhant Mahala v Alfred Almasi | 0-6,1-6 |
| ITF M25 Jablonec Nad Nisou | 2023/05/28 10:30 | Patrik Rikl v Alfred Almasi | 6-2,6-3 |
| ITF M25 Poznan | 2023/08/23 09:55 | Georgii Kravchenko v Martin Zeljenka | 6-1,6-1 |
| ITF M25 Poznan | 2023/08/22 09:00 | Martin Zeljenka v Michalis Sakellaridis | 6-0,6-4 |
| ITF M25 Poznan | 2023/08/21 14:25 | Martin Zeljenka v Adam Bajurko | 6-2,6-3 |
| ITF M15 Kottingbrunn | 2023/08/13 12:00 | Maks Meh v Martin Zeljenka | 6-2,6-3 |
| ITF M25 Osijek | 2023/08/06 10:00 | Martin Zeljenka v Marcell Bartakovics | 3-6,3-6 |
| 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 |