| UTR Pro Tennis Series Sofia | 2021/08/30 07:00 | Martin Dimitrov v Samuil Konov | 4-6,6-1,5-1 |
| ITF M15 Curtea de Arges | 2021/08/08 10:00 | Dan Alexandru Tomescu v Samuil Konov | 6-1,6-3 |
| ITF M25 Pitesti | 2021/08/01 13:30 | Martin Zeljenka v Samuil Konov | 6-4,6-4 |
| ITF M15 Antalya | 2021/06/28 12:20 | Daniil Glinka v Samuil Konov | 6-3,6-1 |
| ITF M15 Antalya | 2021/06/27 06:30 | Sabit Suntic v Samuil Konov | 4-6,3-6 |
| UTR Pro Tennis Series Bucharest | 2021/06/03 12:00 | Kuzey Cekirge v Samuil Konov | 6-3,4-6,7-5 |
| UTR Pro Tennis Series Bucharest | 2021/06/03 06:00 | Vlad Andrei Dancu v Samuil Konov | 6-3,5-7,6-2 |
| UTR Pro Tennis Series Bucharest | 2021/06/02 13:00 | Valentin Vanta v Samuil Konov | 4-6,6-2,6-2 |
| UTR Pro Tennis Series Sofia | 2021/08/30 11:15 | Matias Zukas v Ivan Penev | 7-5,6-3 |
| ITF M25 Poznan | 2021/08/28 09:30 | Roman Andres Burruchaga v Matias Zukas | 6-1,6-4 |
| ITF M25 Poznan | 2021/08/27 09:30 | Matias Zukas v Michal Mikula | 6-3,6-1 |
| ITF M25 Poznan | 2021/08/26 14:50 | Matias Zukas v Leonardo Aboian | 6-4,2-6,6-2 |
| ITF M25 Poznan | 2021/08/25 12:50 | Matias Zukas v Marcelo Zormann | 6-3,4-6,7-6 |
| ITF M25 Bacau | 2021/08/20 08:00 | Matias Zukas v Vladyslav Orlov | 2-6,3-6 |
| ITF M25 Bacau | 2021/08/19 09:00 | Moez Echargui v Matias Zukas | 1-6,2-6 |
| ITF M25 Bacau | 2021/08/18 07:00 | Vlad Andrei Dancu v Matias Zukas | 6-7,0-6 |