Stadium: Court 7 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Pirot | 2021/09/20 11:00 | Samuil Konov v Kristijan Juhas | 3-6,5-7 |
| ITF M15 Sozopol | 2021/09/14 07:00 | Plamen Milushev v Samuil Konov | 6-4,6-3 |
| ITF M15 Sozopol | 2021/09/13 08:00 | Samuil Konov v Adrian Mateo Bejenaru | 6-4,6-4 |
| 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 M25 Pardubice | 2021/09/20 08:00 | Noah Schlagenhauf v Michael Gloeckler | 6-3,6-2 |
| UTR Pro Tennis Series Ricany | 2021/09/18 07:30 | Lawrence Bataljin v Michael Gloeckler | 6-4,5-2 |
| UTR Pro Tennis Series Ricany | 2021/09/17 09:00 | Michael Gloeckler v Yann Wojcik | 2-6,3-6 |
| UTR Pro Tennis Series Ricany | 2021/09/15 10:30 | Michael Gloeckler v Jan Satral | 2-6,6-6 |
| UTR Pro Tennis Series Ricany | 2021/09/14 09:00 | Michael Gloeckler v Yanais Laurent | 1-6,2-6 |
| UTR Pro Tennis Series Ricany | 2021/09/13 12:00 | Alexander Lazov v Michael Gloeckler | 6-3,6-3 |
| ITF M15 Bad Waltersdorf | 2021/08/22 09:00 | Michael Gloeckler v Giorgio Tabacco | 6-7,6-7 |
| ITF M15 Warmbad-Villach | 2021/08/15 07:00 | Michael Gloeckler v Janos Fekete | 1-6,3-6 |