| UTR Pro Tennis Series - Portoroz | 2021/08/22 07:00 | Petar Pjevcevic v Alec Adamson | 6-1,6-1 |
| UTR Pro Tennis Series - Portoroz | 2021/08/21 12:00 | Jan Vehovec v Alec Adamson | 0-1 |
| UTR Pro Tennis Series - Portoroz | 2021/08/20 09:30 | Alec Adamson v Timur Maulenov | 2-6,3-6 |
| UTR Pro Tennis Series - Portoroz | 2021/08/19 10:35 | Alec Adamson v Deni Zmak | 0-6,2-6 |
| UTR Pro Tennis Series - Portoroz | 2021/08/18 09:30 | Gal Emersic Potocnik v Alec Adamson | 6-3,7-6 |
| UTR Pro Tennis Series - Portoroz | 2021/08/17 08:10 | Denis Parshutin v Alec Adamson | 6-2,6-4 |
| UTR - Pro Tennis Series Cancun | 2021/04/08 13:00 | Alec Adamson v Ivar Aramburu | 3-6,5-7 |
| UTR - Pro Tennis Series Cancun | 2021/04/07 14:30 | Gabriel Evans v Alec Adamson | 6-1,6-1 |
| UTR Pro Tennis Series - Sofia | 2021/08/30 13:30 | Ivailo Keremedchiev v Alexandar Lazarov | 1-6,6-6 |
| UTR Pro Tennis Series - Sofia | 2021/08/29 12:30 | Mihael Mihaylov v Alexandar Lazarov | 0-6,3-6 |
| ITF M25 - Bacau | 2021/08/20 13:00 | Alexandar Lazarov v Arthur Cazaux | 6-7,4-6 |
| ITF M25 - Bacau | 2021/08/19 15:35 | Alexandar Lazarov v Dan Alexandru Tomescu | 6-2,6-4 |
| ITF M25 - Bacau | 2021/08/18 11:25 | Alexandar Lazarov v Victor Vlad Cornea | 6-4,6-4 |
| ITF M25 - Telavi | 2021/08/01 06:00 | Alessandro Ingarao v Alexandar Lazarov | 2-6,2-6 |
| ITF M25 - Telavi | 2021/07/31 13:50 | Zura Tkemaladze v Alexandar Lazarov | 2-6,1-6 |
| ITF M25 - Telavi | 2021/07/31 09:15 | Julian Cash v Alexandar Lazarov | 3-6,3-6 |