Stadium: Court 1 Round: 25 Ground: Clay
| ITF Croatia F2 | 2018/03/13 08:00 | Tom Kocevar-Desman v Deni Zmak | 6-3,3-6,6-4 |
| ITF Bosnia and Herzegovina F1 Qual | 2018/05/14 09:50 | Deni Zmak v Bodin Zarkovic | 6-2,6-2 |
| ITF Bosnia and Herzegovina F1 Qual | 2018/05/13 10:30 | Deni Zmak v Petar Pjevcevic | 6-1,6-0 |
| ITF Croatia F3 | 2018/03/23 12:35 | Matteo Viola v Deni Zmak | 3-6,6-3,6-2 |
| ITF Croatia F3 | 2018/03/22 11:30 | Kai Lemstra v Deni Zmak | 6-4,1-6,4-6 |
| ITF Croatia F3 | 2018/03/21 12:20 | Deni Zmak v David Perez Sanz | 6-3,6-0 |
| ITF Croatia F3 | 2018/03/20 08:30 | Ivan Sabanov v Deni Zmak | 2-6,3-6 |
| ITF Croatia F3 | 2018/03/19 14:00 | Deni Zmak v Andres Gabriel Ciurletti | 6-2,6-2 |
| ITF Croatia F3 | 2018/03/19 11:00 | Andre Biro v Deni Zmak | 2-6,3-6 |
| ITF Turkey F15 | 2018/04/17 07:30 | Tom Kocevar-Desman v Rudolf Molleker | 4-6,3-6 |
| ITF Turkey F15 | 2018/04/16 07:30 | Vitaliy Sachko v Tom Kocevar-Desman | 1-6,7-6,3-6 |
| ITF Turkey F15 | 2018/04/15 09:30 | Tillmann Erdbories v Tom Kocevar-Desman | 0-6,3-6 |
| ITF Turkey F15 | 2018/04/14 07:30 | Kevin Chahoud v Tom Kocevar-Desman | 2-6,6-7 |
| ITF Croatia F3 | 2018/03/22 09:00 | Tom Kocevar-Desman v Peter Nagy | 3-6,2-6 |
| 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 |