| UTR Pro Tennis Series Ricany | 2021/09/11 07:30 | Langmajer, Dominik v Adamson, Alec | 3-6,6-3,6-3 |
| UTR Pro Tennis Series Sofia | 2021/09/01 08:00 | Adamson, Alec v Keremedchiev, Ivailo | 4-6,1-5 |
| UTR Pro Tennis Series Sofia | 2021/08/31 08:30 | Adamson, Alec v Alexandar Lazarov | 2-6,1-5 |
| UTR Pro Tennis Series Portoroz | 2021/08/22 07:00 | Pjevcevic, Petar v Adamson, Alec | 6-1,6-1 |
| UTR Pro Tennis Series Portoroz | 2021/08/21 12:00 | Vehovec, Jan v Adamson, Alec | 0-1 |
| UTR Pro Tennis Series Portoroz | 2021/08/20 09:30 | Adamson, Alec v Maulenov, Timur | 2-6,3-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/19 10:35 | Adamson, Alec v Zmak, Deni | 0-6,2-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/18 09:30 | Gal Emersic Potocnik v Adamson, Alec | 6-3,7-6 |