Stadium: Court 3 Round: 62 Ground: Clay
| ITF Serbia F3 | 2018/08/19 12:30 | Abdulhamid Mubarak v Stefan Suvajac | 4-6,6-3,1-6 |
| ITF Serbia F3 | 2018/08/18 09:30 | Ivan Randjelovic v Stefan Suvajac | 7-5,4-6,1-6 |
| 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 Serbia F2 | 2018/08/14 10:05 | Dejan Katic v Nemanja Subanovic | 6-1,6-7,6-4 |
| ITF Slovakia F1 | 2018/07/22 08:00 | Nemanja Subanovic v Alessandro Ricci | 1-6,0-6 |
| ITF Slovakia F1 | 2018/07/21 08:00 | Nemanja Subanovic v Adam Blecha | 2-6,7-6,7-5 |
| ITF Hungary F5 Qual | 2018/06/18 08:00 | Mike Urbanija v Nemanja Subanovic | 6-2,6-3 |
| ITF Hungary F5 Qual | 2018/06/17 08:00 | Nemanja Subanovic v Daniel Kopeinigg | 6-4,6-2 |
| ITF Hungary F5 Qual | 2018/06/16 08:00 | Dominik Kisantal v Nemanja Subanovic | 2-6,2-6 |
| ITF Hungary F4 Qual | 2018/06/10 11:00 | Karl Friberg v Nemanja Subanovic | 6-1,6-4 |
| ITF Hungary F4 Qual | 2018/06/09 08:00 | Philip Bachmaier v Nemanja Subanovic | 3-6,2-6 |