| UTR Pro Tennis Series Portoroz | 2021/08/25 07:00 | Olexiy Kolisnyk v Vladan Tadic | 6-2,3-6,2-1 |
| UTR Pro Tennis Series Portoroz | 2021/08/24 08:30 | Nik Razborsek v Olexiy Kolisnyk | 5-7,6-2,2-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/21 09:30 | Olexiy Kolisnyk v Deni Zmak | 4-6,6-7 |
| UTR Pro Tennis Series Portoroz | 2021/08/20 11:00 | Olexiy Kolisnyk v Lawrence Bataljin | 6-3,6-2 |
| UTR Pro Tennis Series Portoroz | 2021/08/18 08:00 | George Botezan v Olexiy Kolisnyk | 5-7,1-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/17 09:30 | Teodor Ureche v Olexiy Kolisnyk | 0-6,2-5 |
| UTR Pro Tennis Series Barcelona | 2021/08/15 08:00 | Olexiy Kolisnyk v Federico Zeballos | 2-6,6-2,6-4 |
| UTR Pro Tennis Series Barcelona | 2021/08/14 06:30 | Olexiy Kolisnyk v Jordi Mas De Ugarte | 6-3,6-1 |
| 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 |
| ITF M15 Cairo | 2021/07/26 08:00 | Volodymyr Uzhylovskyi v Mattia Rossi | 6-1,7-5 |
| ITF M15 Cairo | 2021/07/25 09:30 | Volodymyr Uzhylovskyi v Karim El Feky | 7-5,6-4 |
| ITF M15 Cairo | 2021/07/21 11:30 | Volodymyr Uzhylovskyi v Jose Fco. Vidal Azorin | 1-6,6-7 |
| ITF M15 Heraklion | 2021/06/07 07:30 | Volodymyr Uzhylovskyi v Eduardo Cohen | 6-4,5-7,9-11 |