Stadium: Court 5 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Sozopol | 2021/09/12 11:00 | Samuil Konov v Denislav Prodanov | 6-2,6-0 |
| UTR Pro Tennis Series Sofia | 2021/09/02 11:30 | Ivailo Keremedchiev v Samuil Konov | 3-6,7-6,5-2 |
| UTR Pro Tennis Series Sofia | 2021/09/01 11:00 | Samuil Konov v Ivan Penev | 4-6,6-1,6-0 |
| UTR Pro Tennis Series Sofia | 2021/08/31 06:30 | Samuil Konov v Matias Zukas | 3-6,1-6 |
| 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 M25 Bacau | 2021/08/17 08:30 | Bogdan Borza v Adrian Mateo Bejenaru | 4-6,6-1,11-9 |
| ITF M15 Curtea de Arges | 2021/08/09 09:00 | Dan Alexandru Tomescu v Adrian Mateo Bejenaru | 6-2,6-0 |
| ITF M25 Pitesti | 2021/08/01 13:30 | Adrian Mateo Bejenaru v Vladimir Filip | 6-1,5-7,10-12 |
| ITF M15 Antalya | 2021/06/27 06:30 | Andrea Del Federico v Adrian Mateo Bejenaru | 6-4,6-4 |
| ITF M15 Antalya | 2021/06/20 07:00 | Adrian Mateo Bejenaru v Mert Naci Turker | 4-6,2-6 |
| ITF M15 Bucharest | 2021/05/24 09:30 | Adrian Mateo Bejenaru v Petru-Alexandru Luncanu | 6-3,1-6,4-10 |
| ITF M15 Bucharest | 2021/05/23 10:00 | Adrian Mateo Bejenaru v Gheorghe Claudiu Schinteie | 6-1,6-3 |
| ITF M15 Antalya | 2021/05/12 11:30 | Vladimir Ivanov v Adrian Mateo Bejenaru | 6-3,7-6 |