Stadium: Hard Court Center Round: 44 Ground: Hardcourt outdoor
| ITF M15 Doha | 2020/03/11 15:10 | Pol Wattanakul v Gabriel Donev | 6-1,6-2 |
| ITF M15 Burgas | 2019/10/09 13:45 | Gabriel Donev v Alexandar Lazarov | 7-5,2-6,5-7 |
| ITF M15 Chornomorsk | 2019/09/26 09:10 | Daniil Strelchenko v Gabriel Donev | 3-6,2-6 |
| ITF M15 Chornomorsk | 2019/09/24 07:00 | Vasko Mladenov v Gabriel Donev | 4-6,4-6 |
| Davis Cup | 2019/09/14 10:40 | Philip Henning v Gabriel Donev | 6-2,6-3 |
| ITF M15 Curtea de Arges | 2019/08/23 08:00 | Hernan Casanova v Gabriel Donev | 6-2,6-0 |
| ITF M15 Curtea de Arges | 2019/08/22 07:00 | Alexandru Vasile Manole v Gabriel Donev | 4-6,2-6 |
| ITF M25 Pitesti | 2019/08/14 06:00 | Gabriel Donev v Bogdan Pavel | 6-7,3-6 |
| ITF M15 Bucharest | 2020/09/10 06:55 | Michal Dembek v Dan Added | 4-6,4-6 |
| ITF M15 Bucharest | 2020/09/09 09:20 | Michal Dembek v Nicolae Frunza | 6-0,7-6 |
| ITF M25 Poznan | 2020/08/25 11:55 | Felipe Meligeni Rodrigues Alves v Michal Dembek | 7-5,6-2 |
| Polish National Tour | 2020/07/30 10:00 | Filip Kolasinski v Michal Dembek | 4-6,3-6 |
| Polish National Tour | 2020/07/29 07:00 | Mateusz Cislo v Michal Dembek | 1-6,1-6 |
| Polish National Tour | 2020/07/27 08:00 | Kamil Majchrzak v Michal Dembek | 6-3,7-5 |
| Polish National Tour | 2020/07/26 07:00 | Michal Dembek v Maciej Rajski | 2-6,6-3,6-4 |
| Polish National Tour | 2020/07/25 08:10 | Michal Dembek v Michal Mikula | 6-3,6-4 |