Stadium: Court 2 Round: 25 Ground: Clay
| ITF Serbia F4 | 2018/08/28 08:00 | Petrovic, Stefan v Jaroslav Pospisil | 5-7,0-6 |
| ITF Serbia F4 | 2018/08/27 08:30 | Petrovic, Stefan v Markovic, Luka | 6-1,7-5 |
| ITF Serbia F4 | 2018/08/26 07:00 | Petrovic, Stefan v Shendrit Deari | 6-3,6-3 |
| ITF Serbia F3 | 2018/08/18 09:30 | Petrovic, Stefan v Suntic, Sabit | 4-6,3-6 |
| ITF Serbia F2 | 2018/08/11 09:30 | Petrovic, Stefan v Milan Krnjetin | 1-6,6-4,0-6 |
| ITF Serbia F1 Qual | 2018/08/05 08:00 | Petrovic, Stefan v Skadarka, Stefan | 5-7,4-6 |
| ITF Serbia F1 Qual | 2018/08/04 07:00 | Petrovic, Stefan v Gunduboina, Nitin | 7-5,6-3 |
| ITF Portugal F11 Qual | 2018/07/03 08:30 | Mark Whitehouse v Petrovic, Stefan | 6-2,7-5 |
| ITF Serbia F4 | 2018/08/27 09:40 | Alexandros Skorilas v Gatev, Maximilian | 6-1,6-2 |
| ITF Serbia F4 | 2018/08/26 07:00 | Stipic, Filip v Gatev, Maximilian | 3-6,3-6 |
| ITF Serbia F4 | 2018/08/25 07:00 | Zimbrek-Turkovic, Gaspar v Gatev, Maximilian | 6-4,2-6,3-6 |
| ITF Serbia F3 | 2018/08/22 10:40 | Quentin Folliot v Gatev, Maximilian | 6-2,6-4 |
| ITF Serbia F2 | 2018/08/14 08:00 | Gatev, Maximilian v Semjan, Marek | 7-5,4-6,2-6 |
| ITF Serbia F1 Qual | 2018/08/04 07:00 | Stevan Popovic v Gatev, Maximilian | 6-3,6-7,6-3 |
| ITF Spain F19 Qual | 2018/07/14 12:00 | Gatev, Maximilian v Blanco Damea, Alvaro | 4-6,6-4,3-6 |
| ITF Netherlands F3 | 2018/07/07 14:00 | Daniel De Jonge v Gatev, Maximilian | 6-7,6-2,6-1 |