| UTR Pro Tennis Series Cancun | 2021/04/08 13:00 | Alec Adamson v Ivar Aramburu | 3-6,5-7 |
| UTR Pro Tennis Series Manzanillo | 2021/12/18 15:30 | Aleksandar Temov v Ivar Aramburu | 3-6,2-6 |
| UTR Pro Tennis Series Manzanillo | 2021/12/17 18:00 | Ivar Aramburu v Javier Alejandro Mendoza Crespo | 3-6,2-5 |
| UTR Pro Tennis Series Manzanillo | 2021/12/16 19:30 | Ivar Aramburu v Jose Antonio Rodriguez Rodriguez | 2-6,2-6 |
| UTR Pro Tennis Series Manzanillo | 2021/12/15 16:30 | Graham Maassen v Ivar Aramburu | 1-6,6-4,6-4 |
| UTR Pro Tennis Series Manzanillo | 2021/12/14 19:18 | Santiago Arredondo v Ivar Aramburu | 6-4,6-3 |
| UTR Pro Tennis Series Manzanillo | 2021/12/11 18:00 | Ivar Aramburu v Nicolas Cortes Campos | 0-6,0-6 |
| UTR Pro Tennis Series Manzanillo | 2021/12/10 16:30 | Ivar Aramburu v Lazaro Navarro-Batles | 6-3,6-3 |
| UTR Pro Tennis Series Manzanillo | 2021/12/09 19:53 | Ivar Aramburu v Adrian Contreras | 2-6,6-0,6-0 |
| UTR Pro Tennis Series Ricany | 2021/09/11 07:30 | Dominik Langmajer v Alec Adamson | 3-6,6-3,6-3 |
| UTR Pro Tennis Series Sofia | 2021/09/01 08:00 | Alec Adamson v Ivailo Keremedchiev | 4-6,1-5 |
| UTR Pro Tennis Series Sofia | 2021/08/31 08:30 | Alec Adamson v Alexandar Lazarov | 2-6,1-5 |
| 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 |