| 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 - Kalifornien | 2021/02/14 16:00 | Wally Thayne v Alec Adamson | 0-6,2-6 |
| UTR Pro Tennis Series - Kalifornien | 2021/02/12 21:30 | Alec Adamson v Alexander Sarkissian | 2-6,3-6 |
| UTR Pro Tennis Series - Kalifornien | 2021/02/10 20:00 | Alec Adamson v Isaiah Strode | 3-6,2-5 |
| UTR Pro Tennis Series - Kalifornien | 2021/02/09 21:30 | Alec Adamson v Joshua Ortlip | 2-6,3-5 |
| UTR Pro Tennis Series - Portoroz | 2021/08/17 08:00 | Gal Emersic Potocnik v Deni Zmak | 1-6,4-6 |
| UTR Pro Tennis Series - Portoroz | 2021/08/16 08:00 | Deni Zmak v Timur Maulenov | 6-0,6-0 |
| UTR Pro Tennis Series - Zadar | 2021/07/04 10:00 | Matija Pecotic v Deni Zmak | 6-3,6-3 |
| UTR Pro Tennis Series - Zadar | 2021/07/03 08:30 | Josip Krstanovic v Deni Zmak | 5-7,3-5 |
| UTR Pro Tennis Series - Zadar | 2021/07/02 08:00 | Deni Zmak v Bozo Barun | 6-2,6-2 |
| UTR Pro Tennis Series - Zadar | 2021/07/01 12:30 | Deni Zmak v Vito Tonejc | 6-3,5-2 |
| UTR Pro Tennis Series - Zadar | 2021/06/30 11:00 | Arthus De La Bassetiere v Deni Zmak | 2-6,3-5 |
| UTR Pro Tennis Series - Zadar | 2021/06/29 08:00 | Ihor Dudun v Deni Zmak | 3-6,2-6 |