| UTR Pro Tennis Series Zadar | 2021/11/15 12:00 | Olexiy Kolisnyk v Christos Keisidis | 7-5,3-6,4-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/29 08:00 | Olexiy Kolisnyk v Deni Zmak | 4-6,6-2,6-3 |
| UTR Pro Tennis Series Portoroz | 2021/08/27 12:00 | Olexiy Kolisnyk v Domen Gostincar | 7-6,6-3 |
| UTR Pro Tennis Series Portoroz | 2021/08/25 10:00 | Olexiy Kolisnyk v Volodymyr Uzhylovskyi | 6-1,6-1 |
| UTR Pro Tennis Series Portoroz | 2021/08/25 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 Zadar | 2021/11/15 12:00 | Denis Parshutin v Alexander Chepik | 6-7,3-5 |
| UTR Pro Tennis Series Zadar | 2021/11/14 12:00 | Alexander Chepik v Egor Matvievici | 6-4,4-6,6-2 |
| ITF M25 Nur-Sultan | 2021/10/26 05:00 | Daniel Ibragimov v Alexander Chepik | 6-3,6-3 |
| ITF M25 Nur-Sultan | 2021/10/25 09:15 | Egor Khotchenkov v Alexander Chepik | 2-6,3-6 |
| ITF M25 Nur-Sultan | 2021/10/19 05:05 | Alec Beckley v Alexander Chepik | 7-6,6-3 |
| ITF M25 Nur-Sultan | 2021/10/18 10:35 | Adil Karakayev v Alexander Chepik | 2-6,3-6 |
| ITF M15 Kazan | 2021/10/13 14:25 | Alexander Chepik v Alibek Kachmazov | 1-6,1-6 |
| ITF M15 Kazan | 2021/10/12 09:15 | Igor Trunov v Alexander Chepik | 6-7,3-6 |