| ITF Hungary F2 Qual | 2018/05/13 08:00 | Enej Berghaus v Leon Petko | 7-6,5-7,6-3 |
| ITF Hungary F7 Qual | 2017/08/27 11:00 | Milen Ianakiev v Leon Petko | 6-4,6-0 |
| ITF Hungary F6 Qual | 2017/08/21 08:30 | Isa Mammetgulyyev v Leon Petko | 6-3,6-4 |
| ITF Slovakia F3 | 2017/08/07 10:00 | Darko Bojanovic v Leon Petko | 6-3,6-2 |
| ITF Slovakia F3 | 2017/08/06 07:00 | Patrik Jancovic v Leon Petko | 6-2,3-6,2-6 |
| ITF Slovakia F2 | 2017/07/31 09:00 | Juraj Masar v Leon Petko | 6-3,6-1 |
| ITF Poland F6 Qual | 2017/07/15 11:00 | Oleksander Kyrychenko v Leon Petko | 6-3,6-0 |
| ITF Poland F5 Qual | 2017/07/10 09:40 | Ronald Slobodchikov v Leon Petko | 6-3,6-3 |
| ITF Hungary F5 Qual | 2018/06/16 08:00 | Petr Nouza v Tino Kovacic | 6-2,6-3 |
| ITF Hungary F3 Qual | 2018/05/19 08:00 | Marko Ilic v Tino Kovacic | 7-6,1-6,6-4 |
| ITF Hungary F2 | 2018/05/15 11:20 | Tino Kovacic v Denis Klok | 2-6,1-6 |
| ITF Hungary F2 Qual | 2018/05/13 08:00 | Ville-Petteri Ahti v Tino Kovacic | 6-7,3-6 |
| ITF Hungary F1 Qual | 2018/05/06 08:00 | Tino Kovacic v Leevi Saatela | 4-6,6-4,6-0 |
| ITF Hungary F1 Qual | 2018/05/05 10:00 | Victor Gurevich v Tino Kovacic | 3-6,1-6 |
| ITF Croatia F3 | 2018/03/18 14:30 | Tino Kovacic v Karlo Cubelic | 4-6,5-7 |
| ITF Croatia F3 | 2018/03/18 08:00 | Tino Kovacic v Marco Di Maro | 6-1,3-6,7-5 |