Stadium: TC Empire Trnava - Court 4 Round: 29 Ground: Hardcourt indoor
Referee:
| ITF M15 Slovenj Gradec | 2025/09/26 10:22 | Piet Luis Pinter v Jonas Gundacker | 6-2,6-2 |
| ITF M15 Slovenj Gradec | 2025/09/25 10:00 | Jonas Gundacker v Josip Simundza | 7-5,6-1 |
| ITF M15 Szczawno | 2025/09/03 13:16 | Jonas Gundacker v Jakub Filip | 4-6,6-3,6-7 |
| ITF M15 Mistelbach | 2025/08/19 11:53 | Lorenzo Angelini v Jonas Gundacker | 6-2,6-1 |
| ITF M15 Slovenska Bistrica | 2025/08/07 11:50 | Juan Cruz Martin Manzano v Jonas Gundacker | 6-1,6-0 |
| ITF M15 Slovenska Bistrica | 2025/08/06 16:15 | Ivan Biletic v Jonas Gundacker | 6-4,6-7,3-6 |
| ITF M15 Wels | 2025/07/30 11:47 | Jonas Gundacker v Stijn Slump | 5-7,6-7 |
| ITF M25 Ollersbach | 2025/07/23 09:00 | Jonas Gundacker v Maik Steiner | 2-6,7-5,3-6 |
| ITF M15 Szabolcsveresmart | 2025/10/30 10:18 | Achilles Belkovics v Jan Hrazdil | 6-2,6-2 |
| ITF M15 Szabolcsveresmart | 2025/10/29 11:00 | Viktor Frydrych v Achilles Belkovics | 6-4,4-6,6-7 |
| UTR Pro Beograd | 2025/10/12 07:00 | Viktor Jovic v Achilles Belkovics | 3-6,2-6 |
| UTR Pro Beograd | 2025/10/11 12:35 | Aleksandar Mihailovic v Achilles Belkovics | 3-6,4-6 |
| UTR Pro Beograd | 2025/10/10 12:15 | Mak Mikovic v Achilles Belkovics | 6-1,3-6,4-6 |
| UTR Pro Beograd | 2025/10/09 09:55 | Semen Pankin v Achilles Belkovics | 6-2,6-1 |
| UTR Pro Beograd | 2025/10/08 10:50 | Maxwell Castle v Achilles Belkovics | 6-7,6-4,7-5 |
| UTR Pro Beograd | 2025/10/06 07:00 | Marko Maksimovic v Achilles Belkovics | 6-4,1-6,7-6 |