Round: 44 Ground: Clay
| ITF - M15 - St. Petersburg | 2021/04/17 09:45 | Matic Spec v Yanki Erel | 6-7,2-6 |
| ITF - M15 - St. Petersburg | 2021/04/16 07:55 | Matic Spec v Alexey Zakharov | 6-2,6-4 |
| ITF - M15 - St. Petersburg | 2021/04/15 07:00 | Jakub Paul v Matic Spec | 6-7,6-4,3-6 |
| ITF - M15 - St. Petersburg | 2021/04/14 09:15 | Matic Spec v Alafia Ayeni | 6-3,6-4 |
| ITF - M15 - St. Petersburg | 2021/04/12 10:15 | Matic Spec v Daniel Ibragimov | 6-1,6-1 |
| ITF - M15 - St. Petersburg - Qualifikation | 2021/04/11 07:00 | Matic Spec v Maksim Starostin | 6-3,6-2 |
| ITF - M15 - St. Petersburg | 2021/04/08 09:00 | Matic Spec v Aristarkh Safonov | 3-6,5-7 |
| ITF - M15 - St. Petersburg | 2021/04/07 07:00 | Savriyan Danilov v Matic Spec | 3-6,2-6 |
| ITF - M15 - Sibenik | 2021/04/18 08:00 | Luka Miklavcic v Paul Valsecchi | 2-6,4-6 |
| ITF - M15 - Porec | 2021/03/07 11:00 | Sebastian Prechtel v Luka Miklavcic | 6-1,6-2 |
| ITF - M15 - Antalya | 2019/11/03 09:00 | Luka Miklavcic v Arsenije Zlatanovic | 4-6,6-7 |
| ITF - M15 - Antalya | 2019/10/29 07:00 | Luka Miklavcic v Kristof Minarik | 2-6,6-3,8-10 |
| ITF - M15 - Antalya | 2019/10/28 07:00 | Luka Miklavcic v Yu Lun Xie | 6-0,6-1 |
| ITF - M15 - Antalya | 2019/10/27 07:00 | Naoki Takeda v Luka Miklavcic | 6-2,5-7,11-13 |
| ITF - M15 - Antalya | 2019/10/07 08:00 | Alexander Ovcharov v Luka Miklavcic | 2-6,6-4,10-2 |
| ITF - M15 - Novi Sad | 2019/08/12 08:00 | Luka Miklavcic v Antun Vidak | 4-6,2-6 |