Stadium: Court 2 Round: 62 Ground: Clay
| ITF Bulgaria F1 | 2018/05/17 10:45 | Oreskovic, Z. v Manda, Calin | 1-6,1-6 |
| ITF Bulgaria F1 | 2018/05/16 08:52 | Sabanin, Yan v Oreskovic, Z. | 1-1 |
| ITF Hungary F1 Qual | 2018/05/05 10:00 | Maric, Filip v Oreskovic, Z. | 7-6,2-6,6-4 |
| ITF Croatia F3 | 2018/03/20 10:00 | Antonescu, Vasile v Oreskovic, Z. | 6-3,6-3 |
| ITF Croatia F2 | 2018/03/12 14:15 | Oreskovic, Z. v Kranic, Karlo | 2-6,4-6 |
| ITF Croatia F2 | 2018/03/12 08:00 | Malesevic, Nemanja v Oreskovic, Z. | 0-6,6-3,6-7 |
| ITF Croatia F2 | 2018/03/10 10:00 | Oreskovic, Z. v Wang, Kaiwei | 6-1,6-3 |
| ITF Croatia F1 | 2018/03/04 15:30 | Oreskovic, Z. v Zmak, Deni | 3-6,0-6 |
| ITF Bosnia and Herzegovina F2 Qual | 2018/05/20 12:30 | Dragovic, Stefan v Zhao, Lingxi | 1-6,7-5,5-7 |
| ITF Bosnia and Herzegovina F2 Qual | 2018/05/20 07:00 | Dragovic, Stefan v Nareyka, Bjorn | 6-1,6-2 |
| ITF Bosnia and Herzegovina F1 Qual | 2018/05/14 09:30 | Hodor, Samuel v Dragovic, Stefan | 5-7,6-1,6-1 |
| Tunisia F3, Singles Qualifying | 2018/01/20 11:30 | Dragovic, Stefan v Nazim Makhlouf | 3-6,6-7 |
| ITF Tunisia F2 | 2018/01/17 10:55 | Dragovic, Stefan v Lombe, Harrison | 1-6,1-6 |
| ITF Tunisia F1 | 2018/01/07 10:30 | Trocker, Moritz v Dragovic, Stefan | 7-6,7-5 |