| UTR Pro Tennis Series Sofia | 2021/08/30 13:30 | Valentin Vanta v Volodymyr Uzhylovskyi | 6-2,6-3 |
| UTR Pro Tennis Series Portoroz | 2021/08/27 12:00 | Vladan Tadic v Volodymyr Uzhylovskyi | 5-7,2-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/26 07:00 | Nik Razborsek v Volodymyr Uzhylovskyi | 6-3,5-7,5-7 |
| UTR Pro Tennis Series Portoroz | 2021/08/25 10:00 | Olexiy Kolisnyk v Volodymyr Uzhylovskyi | 6-1,6-1 |
| UTR Pro Tennis Series Portoroz | 2021/08/17 12:30 | Volodymyr Uzhylovskyi v Max Lukman | 6-1,5-1 |
| ITF M15 Cairo | 2021/08/02 11:30 | Volodymyr Uzhylovskyi v Lautaro Agustin Falabella | 2-6,6-2,10-12 |
| ITF M15 Cairo | 2021/08/01 09:00 | Volodymyr Uzhylovskyi v Sherif Makhlouf | 6-3,6-3 |
| ITF M15 Cairo | 2021/07/27 08:00 | Volodymyr Uzhylovskyi v Facundo Arias Bisso | 3-6,3-6 |
| UTR Pro Tennis Series Sofia | 2021/08/30 12:00 | Warren Sinius v George Lazarov | 2-6,2-5 |
| UTR Pro Tennis Series Zadar | 2021/07/04 07:00 | Bozo Barun v Warren Sinius | 6-1,6-0 |
| UTR Pro Tennis Series Zadar | 2021/07/01 09:30 | Warren Sinius v Jerko Brkic | 6-3,6-5 |
| UTR Pro Tennis Series Zadar | 2021/06/30 08:00 | Warren Sinius v Constant De La Bassetiere | 3-6,6-6 |
| UTR Pro Tennis Series Zadar | 2021/06/29 11:00 | Warren Sinius v Frane Nincevic | 5-7,3-6 |
| UTR Pro Tennis Series Zadar | 2021/06/28 12:30 | Warren Sinius v Josip Krstanovic | 2-6,1-5 |
| UTR Pro Tennis Series Copenhagen | 2021/06/20 08:00 | Alexander Konigsfeldt v Warren Sinius | 6-1,6-0 |
| UTR Pro Tennis Series Copenhagen | 2021/06/19 07:00 | Nikolaj Katic v Warren Sinius | 4-5 |