Stadium: Court 1 Round: 25 Ground: Clay
| ITF M15 Kottingbrunn | 2023/08/14 08:00 | Manuel Lazic v Janos Fekete | 2-6,2-6 |
| ITF M15 Vienna | 2023/08/28 08:00 | Janos Fekete v Dennis Dragomirov | 6-2,6-3 |
| ITF M15 Vienna | 2023/08/27 10:30 | Marc Antoine Gaillard v Janos Fekete | 6-4,4-6,5-10 |
| ITF M15 Kottingbrunn | 2023/08/14 10:30 | Attila Dominik Boros v Janos Fekete | 7-6,6-4 |
| ITF M15 Kottingbrunn | 2023/08/14 08:00 | Manuel Lazic v Janos Fekete | 2-6,2-6 |
| ITF M15 Kottingbrunn | 2023/08/13 12:00 | Janos Fekete v Rafael Giotis | 6-0,6-2 |
| UTR Pro Olomouc | 2023/07/08 08:17 | Jan Jermar v Janos Fekete | 4-6,2-1 |
| UTR Pro Olomouc | 2023/07/07 09:53 | Janos Fekete v Artem Podorozhnyi | 6-4,6-0 |
| UTR Pro Olomouc | 2023/07/05 06:00 | Janos Fekete v Petr Iamachkine | 5-7,6-4,6-1 |
| ITF M15 Kottingbrunn | 2023/08/14 08:00 | Manuel Lazic v Janos Fekete | 2-6,2-6 |
| ITF M15 Kottingbrunn | 2023/08/13 08:00 | Manuel Lazic v Filip Jeff Planinsek | 4-6,7-6,10-4 |
| ITF M25 Telfs | 2023/07/18 10:05 | Buvaysar Gadamauri v Manuel Lazic | 6-2,6-0 |
| ITF M15 Warmbad-Villach | 2023/05/21 08:00 | Filippo Speziali v Manuel Lazic | 6-3,6-1 |
| ITF M15 Warmbad-Villach | 2023/05/21 07:00 | Aldin Jasarevic v Manuel Lazic | 1-6,0-6 |
| Challenger Mauthausen | 2023/05/07 11:20 | Manuel Lazic v Marius Copil | 3-6,0-6 |
| ITF M15 Antalya | 2023/03/05 06:30 | Manuel Lazic v Mirko Lagasio | 3-6,5-7 |
| ITF M15 Antalya | 2023/01/23 06:30 | Eric Vanshelboim v Manuel Lazic | 6-2,6-1 |