Stadium: Court 4 Round: 28 Ground: Hardcourt outdoor
| Challenger Nur-Sultan MD | 2021/07/15 10:00 | Polansky/Stakhovsky v Chung/Sultanov | 6-2,6-3 |
| Challenger Nur-Sultan MD | 2021/07/14 10:00 | Polansky/Stakhovsky v Dubrivnyy/Lomakin | 6-4,3-6,10-6 |
| Challenger Nur-Sultan MD | 2021/07/15 11:10 | Kotov/Manafov v Bega/Denolly | 6-7,2-6 |