Stadium: Opatija 1 Round: 26 Ground: Clay
| ITF Croatia F3 | 2018/03/21 12:00 | Bruno Santanna v Tom Kocevar-Desman | 3-6,4-6 |
| ITF Croatia F3 | 2018/03/20 09:00 | Tom Kocevar-Desman v Horst Rieder | 6-2,6-1 |
| ITF Croatia F3 | 2018/03/18 14:00 | Tom Kocevar-Desman v Gabriel Huber | 6-0,6-1 |
| ITF Croatia F2 | 2018/03/14 09:00 | Gonzalo Escobar v Tom Kocevar-Desman | 6-3,6-3 |
| ITF Croatia F2 | 2018/03/13 08:00 | Tom Kocevar-Desman v Deni Zmak | 6-3,3-6,6-4 |
| ITF Croatia F2 | 2018/03/12 11:00 | Tom Kocevar-Desman v Pietro Schiavetti | 6-4,6-2 |
| ITF Croatia F2 | 2018/03/11 08:00 | Tom Kocevar-Desman v Leopold Zima | 6-3,6-2 |
| ITF Croatia F1 | 2018/03/09 09:00 | Dragos Dima v Tom Kocevar-Desman | 7-6,6-3 |
| ITF Croatia F3 | 2018/03/21 13:15 | Yvo Panak v Peter Nagy | 4-6,5-7 |
| ITF Croatia F2 | 2018/03/13 10:00 | Zdenek Kolar v Peter Nagy | 6-4,6-4 |
| ITF Croatia F1 | 2018/03/09 13:00 | Peter Nagy v Gonzalo Escobar | 3-6,6-3,2-6 |
| ITF Croatia F1 | 2018/03/09 09:00 | Ivan Sabanov v Peter Nagy | 5-7,2-6 |
| ITF Turkey F6 | 2018/02/14 13:00 | Attila Balazs v Peter Nagy | 6-0,6-1 |
| Challenger Budapest | 2018/02/06 17:35 | Peter Nagy v Elias Ymer | 3-6,2-6 |
| ITF Tunisia F3 | 2018/01/25 08:30 | Peter Nagy v Sergio Gutierrez-Ferrol | 1-6,2-6 |
| ITF Tunisia F3 | 2018/01/24 08:30 | Aziz Ouakaa v Peter Nagy | 3-6,2-6 |