| Davis Cup | 2020/03/08 12:00 | Aisam-Ul-Haq Qureshi v Nik Razborsek | 4-6,7-5,7-6 |
| ITF M15 Trnava | 2020/02/27 14:25 | Danylo Kalenichenko v Nik Razborsek | 6-4,6-4 |
| ITF M15 Trnava | 2020/02/25 11:30 | Nik Razborsek v Andrew Paulson | 7-5,6-4 |
| ITF M15 Antalya | 2020/01/22 08:45 | Nik Razborsek v Marlon Vankan | 1-6,3-6 |
| ITF M15 Opava | 2019/10/31 09:00 | Nik Razborsek v Jaroslav Pospisil | 5-7,5-7 |
| ITF M15 Opava | 2019/10/29 12:30 | Nik Razborsek v Francesco Vilardo | 6-3,6-3 |
| ITF M25 Ricany | 2019/09/27 10:00 | Nik Razborsek v Michael Vrbensky | 3-6,3-6 |
| ITF M25 Ricany | 2019/09/26 08:00 | Nik Razborsek v Jiri Jenicek | 6-0,6-2 |
| Eastern European Championship | 2020/07/30 08:00 | Dimitar Kuzmanov v Vladan Tadic | 6-1,6-1 |
| Eastern European Championship | 2020/07/28 08:00 | Vladan Tadic v Boris Butulija | 7-5,4-6,2-6 |
| Eastern European Championship | 2020/07/27 11:00 | Marko Miladinovic v Vladan Tadic | 7-5,6-1 |
| Eastern European Championship | 2020/07/17 15:00 | Matej Sabanov v Vladan Tadic | 6-2,6-2 |
| Eastern European Championship | 2020/07/16 12:10 | Alexandar Lazarov v Vladan Tadic | 6-3,6-0 |
| Eastern European Championship | 2020/07/15 12:00 | Vladan Tadic v Boris Butulija | 3-6,6-1,3-6 |
| Eastern European Championship | 2020/07/14 14:00 | Matias Zukas v Vladan Tadic | 6-1,6-4 |
| Eastern European Championship | 2020/07/07 10:55 | Vladan Tadic v Daniil Savelev | 6-2,3-6,4-6 |