Stadium: Court 1 Round: 25 Ground: Clay
| ITF Bosnia and Herzegovina F1 | 2018/05/16 12:30 | Deni Zmak v Tom Kocevar-Desman | 4-6,6-1,1-6 |
| 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 Bosnia and Herzegovina F2 Qual | 2018/05/21 10:45 | Gorazd Srbljak v Mateo Bubalo | 6-1,6-1 |
| ITF Bosnia and Herzegovina F2 Qual | 2018/05/20 07:00 | Gorazd Srbljak v James Allemby | 6-2,6-0 |
| ITF Bosnia and Herzegovina F1 | 2018/05/17 09:40 | Manuel Guinard v Gorazd Srbljak | 6-1,6-1 |
| ITF Bosnia and Herzegovina F1 | 2018/05/16 10:15 | Luca Prevosto v Gorazd Srbljak | 6-1,4-6,3-6 |
| ITF Bosnia and Herzegovina F1 Qual | 2018/05/14 08:00 | Gorazd Srbljak v Andrea Picchione | 6-4,6-2 |
| ITF Bosnia and Herzegovina F1 Qual | 2018/05/13 08:00 | Gorazd Srbljak v Mile Matic | 6-2,6-4 |
| ITF Turkey F17 | 2018/05/03 09:50 | Gorazd Srbljak v Colin Van Beem | 6-3,4-6,1-6 |
| ITF Turkey F17 | 2018/05/01 11:30 | Olexiy Kolisnyk v Gorazd Srbljak | 4-6,3-6 |