Stadium: Court 3 Round: 62 Ground: Clay
| ITF M15 Budapest | 2023/09/03 09:30 | Kevin Humpfner v Martin Zeljenka | 6-2,6-2 |
| ITF M15 Budapest | 2023/08/27 07:00 | Alfred Almasi v Martin Zeljenka | 6-4,6-3 |
| 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 Satu Mare | 2023/09/10 09:30 | Tudor S Gheorghita v Alexandru Luca | 2-6,1-6 |
| ITF M15 Constanta | 2023/09/03 06:00 | Lorenzo Ferri v Alexandru Luca | 6-1,6-3 |
| ITF M15 Bucharest | 2023/08/29 11:35 | Alexandru Luca v Juan Pablo Paz | 1-6,0-6 |
| ITF M15 Targu Jiu | 2023/08/14 07:00 | Radovan Michalik v Alexandru Luca | 6-2,6-2 |
| ITF M15 Targu Jiu | 2023/08/13 06:30 | Luka Vukovic v Alexandru Luca | 6-4,3-6,8-10 |
| ITF M15 Curtea de Arges | 2023/08/07 06:30 | Alexandru Luca v Nikola Kolyachev | 2-6,2-6 |
| ITF M25 Brasov | 2023/07/02 06:30 | Csongor Hejjas v Alexandru Luca | 6-3,6-0 |
| ITF M15 Constanta | 2023/05/28 14:00 | Alexandru Luca v Ruben Hartig | 4-6,3-6 |