Stadium: Court 2 Round: 25 Ground: Hardcourt indoor
| UTR Pro Tennis Series Canberra | 2021/04/23 03:00 | Nikita Volonski v Scott Puodziunas | 1-6,4-6 |
| UTR Pro Tennis Series Canberra | 2021/04/21 00:00 | Nikita Volonski v Omar Jasika | 4-6,4-6 |
| UTR Pro Tennis Series Canberra | 2021/04/19 23:30 | Nikita Volonski v Dayne Kelly | 1-6,2-6 |
| UTR Pro Tennis Series Canberra | 2021/04/18 23:30 | Casey Hoole v Nikita Volonski | 7-5,5-3 |
| UTR Pro Tennis Series Canberra | 2021/04/18 02:00 | Nikita Volonski v Scott Webster | 6-4,6-1 |
| UTR Pro Tennis Series Canberra | 2021/04/17 03:00 | Aaron Addison v Nikita Volonski | 6-2,3-6,1-5 |
| UTR Pro Tennis Series Canberra | 2021/04/15 23:00 | Nikita Volonski v Li Tu | 2-6,3-5 |
| UTR Pro Tennis Series Canberra | 2021/04/14 05:00 | Nikita Volonski v Omar Jasika | 3-6,6-4,3-6 |
| ITF M15 Monastir | 2021/08/31 08:00 | Tomohiro Masabayashi v Sergey Bolotov | 6-4,6-3 |
| ITF M15 Monastir | 2021/08/30 14:00 | Sergey Bolotov v Dylan Salton | 7-5,2-6,10-7 |
| ITF M15 Monastir | 2021/08/30 08:00 | Sergey Bolotov v Josh Reid | 6-2,6-0 |
| ITF M15 Telavi | 2021/08/02 10:00 | Timur Khabibulin v Sergey Bolotov | 6-2,7-5 |
| ITF M15 Telavi | 2021/08/02 06:00 | Asaf Friedler v Sergey Bolotov | 2-6,2-6 |
| ITF M15 Telavi | 2021/08/01 06:00 | Shahar Gabay v Sergey Bolotov | 0-6,3-6 |
| ITF M25 Telavi | 2021/07/26 14:40 | Asaf Friedler v Sergey Bolotov | 6-3,6-4 |
| ITF M15 Monastir | 2021/07/12 08:00 | Abdulhamid Mubarak v Sergey Bolotov | 6-4,6-7,11-9 |