Stadium: Court 7 Round: 62 Ground: Clay
| ITF Serbia F2 | 2018/08/12 10:30 | Marko Vujic v Ivan Randjelovic | 6-0,6-2 |
| ITF Serbia F1 Qual | 2018/08/06 08:00 | Gorazd Srbljak v Ivan Randjelovic | 6-1,6-2 |
| ITF Serbia F1 Qual | 2018/08/05 08:00 | Ivan Randjelovic v Stevan Popovic | 6-1,6-3 |
| ITF Netherlands F3 | 2018/07/07 07:30 | Ivan Randjelovic v Daniel Grunberger | 2-6,2-6 |
| ITF Netherlands F2 Qual | 2018/06/30 15:00 | Ivan Randjelovic v Samuel Bothwell | 2-6,0-6 |
| ITF Bosnia and Herzegovina F3 Qual | 2018/05/26 09:30 | Ivan Randjelovic v Lingxi Zhao | 1-6,1-6 |
| ITF Croatia F3 | 2018/03/18 10:30 | Anze Arh v Ivan Randjelovic | 6-1,6-4 |
| ITF Croatia F2 | 2018/03/10 10:00 | Ivan Randjelovic v Albert Sprlak Puk | 0-6,0-6 |
| ITF Serbia F2 | 2018/08/12 08:00 | Alexandros Skorilas v Stefan Suvajac | 6-1,6-3 |
| ITF Serbia F1 Qual | 2018/08/05 10:30 | Stefan Suvajac v Boris Butulija | 3-6,5-7 |
| ITF Bosnia and Herzegovina F3 Qual | 2018/05/26 12:30 | Stefan Suvajac v Milos Nikolic | 5-7,6-4,4-6 |
| ITF Bosnia and Herzegovina F2 Qual | 2018/05/21 09:45 | Alexey Aleshchev v Stefan Suvajac | 6-0,7-5 |
| ITF Bosnia and Herzegovina F2 Qual | 2018/05/19 07:00 | Jan Vehovec v Stefan Suvajac | 3-6,4-6 |
| ITF Bosnia and Herzegovina F1 Qual | 2018/05/12 13:30 | Stefan Suvajac v Stefan Latinov | 2-6,7-6,2-6 |
| ITF Hungary F1 Qual | 2018/05/06 08:00 | Ville-Petteri Ahti v Stefan Suvajac | 6-4,6-0 |
| ITF Hungary F1 Qual | 2018/05/05 08:00 | Stefan Suvajac v Norbert Nagyi | 6-2,6-1 |