Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| Challenger Nur-Sultan | 2021/07/19 04:00 | Artem Dubrivnyy v Vladyslav Manafov | 6-2,7-6 |
| Challenger Nur-Sultan - selejtezők | 2021/07/18 06:35 | Artem Dubrivnyy v Timur Khabibulin | 6-2,6-4 |
| Challenger Nur-Sultan | 2021/07/13 05:30 | Artem Dubrivnyy v Jay Clarke | 5-7,6-7 |
| Challenger Nur-Sultan | 2021/07/12 04:00 | Edan Leshem v Artem Dubrivnyy | 6-7,6-7 |
| Challenger Nur-Sultan | 2021/07/11 05:15 | Islam Orynbasar v Artem Dubrivnyy | 1-6,3-6 |
| Challenger Biella | 2021/05/31 09:00 | Hugo Grenier v Artem Dubrivnyy | 7-5,6-1 |
| Challenger Biella | 2021/05/30 10:20 | Artem Dubrivnyy v Geoffrey Blancaneaux | 7-5,6-4 |
| ITF M15 Brcko | 2021/05/22 07:30 | Artem Dubrivnyy v Otto Virtanen | 1-6,3-6 |
| Challenger Nur-Sultan | 2021/07/17 06:00 | Peter Polansky v Max Purcell | 5-7,6-3,6-7 |
| Challenger Nur-Sultan | 2021/07/16 06:00 | Roman Safiullin v Peter Polansky | 2-6,6-1,6-7 |
| Challenger Nur-Sultan | 2021/07/15 06:00 | Andrey Kuznetsov v Peter Polansky | 4-6,3-6 |
| Challenger Nur-Sultan | 2021/07/13 04:00 | Grigoriy Lomakin v Peter Polansky | 4-6,6-7 |
| ITF M25 Nur-Sultan | 2021/07/07 04:00 | Peter Polansky v Andrey Kuznetsov | 5-7,3-6 |
| Challenger Porto | 2021/06/30 10:00 | Peter Polansky v Goncalo Oliveira | 6-7,4-6 |
| Challenger Porto | 2021/06/28 11:20 | Alejandro Tabilo v Peter Polansky | 6-1,1-6,2-6 |
| Challenger Orlando | 2021/06/10 14:00 | Peter Polansky v Nicolas Jarry | 3-6,3-6 |