Round: 44 Ground: Hardcourt outdoor
| ITF Russia F7 | 2018/08/19 07:00 | Vladimir Korolev v Ivan Kalinin | 6-0,6-3 |
| ITF Russia F7 | 2018/08/18 09:30 | Ivan Kalinin v Maksim Malyshev | 6-3,6-4 |
| ITF Russia F6 | 2018/08/11 07:00 | Alexey Aleshchev v Ivan Kalinin | 3-6,7-6,6-4 |
| ITF Russia F5 Qual | 2018/08/05 10:30 | Evgeny Tyurnev v Ivan Kalinin | 6-4,6-2 |
| ITF Russia F4 Qual | 2018/07/29 07:00 | Andrey Vorobyev v Ivan Kalinin | 6-7,6-4,6-4 |
| ITF Georgia F2 | 2018/07/15 10:00 | Egor Noskin v Ivan Kalinin | 6-3,6-4 |
| ITF Georgia F1 | 2018/07/09 06:00 | Alexander Boborykin v Ivan Kalinin | 2-6,7-5,7-6 |
| ITF Uzbekistan F4 Qual | 2018/06/05 04:30 | Ivan Kalinin v Sharobiddin Abzalov | 5-7,2-6 |
| ITF Kazakhstan F7 | 2018/09/15 05:00 | Amal Sultanbekov v Luka Markovic | 6-2,6-1 |
| ITF Serbia F4 | 2018/08/27 08:30 | Stefan Petrovic v Luka Markovic | 6-1,7-5 |
| ITF Serbia F4 | 2018/08/26 07:00 | Luka Markovic v Klim Ivanov | 6-3,6-4 |
| ITF Serbia F4 | 2018/08/25 10:00 | Marko Pavlovic v Luka Markovic | 2-6,0-6 |
| ITF Serbia F3 | 2018/08/19 08:00 | Luka Markovic v Petar Pjevcevic | 1-6,6-3,4-6 |
| ITF Serbia F3 | 2018/08/18 07:00 | Nino Portales v Luka Markovic | 4-6,3-6 |
| ITF Hungary F5 Qual | 2018/06/17 10:30 | Matvey Khomentovskiy v Luka Markovic | 6-0,6-0 |
| ITF Bosnia and Herzegovina F1 Qual | 2018/05/14 09:05 | Luka Markovic v Stefan Micov | 2-6,0-6 |