Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| Challenger Nur-Sultan - Herrdubbel | 2021/07/15 10:00 | Polansky/Stakhovsky v Chung/Sultanov | 6-2,6-3 |
| Challenger Nur-Sultan - Herrdubbel | 2021/07/13 10:00 | Chung/Sultanov v Kubler/Leshem | 6-3,7-5 |
| Challenger Nur-Sultan - Herrdubbel | 2021/07/16 11:15 | Polansky/Stakhovsky v Bega/Denolly | 3-6,6-4,10-8 |
| Challenger Nur-Sultan - Herrdubbel | 2021/07/15 11:10 | Kotov/Manafov v Bega/Denolly | 6-7,2-6 |