Stadium: Court 5 Round: 26 Ground: Clay
| Challenger Nur-Sultan MD | 2022/07/20 14:00 | Istomin/Karlovskiy v Donskoy/Kachmazov | 3-6,6-4,8-10 |
| Challenger Quimper MD | 2021/02/03 09:30 | Istomin/Karlovskiy v Drzewiecki/Walkow | 6-7,5-7 |
| Challenger Winnetka MD | 2019/07/09 21:00 | Istomin/Karlovskiy v Maytin/Withrow | 6-1,4-6,10-2 |
| Challenger Porto MD | 2022/07/06 11:10 | Faria/Vale v Gonzales/Stalder | 6-4,6-7,2-10 |