Stadium: Center Court Round: 28 Ground: Hardcourt outdoor
| ITF M15 Doha MD | 2024/01/09 14:35 | Istomin/Karlovskiy v Virgili/Shannan Zayid | 6-3,6-0 |
| Challenger Ortisei MD | 2023/10/24 13:20 | Istomin/Karlovskiy v Walkow/Zuk | 6-4,0-6,10-5 |
| Challenger Hamburg MD | 2023/10/19 13:20 | Habib/Somani v Istomin/Karlovskiy | 4-6,6-7 |
| Challenger Hamburg MD | 2023/10/18 12:55 | Istomin/Karlovskiy v Harris/Stevenson | 7-6,6-3 |
| ITF M25 Falun MD | 2023/09/27 16:30 | Istomin/Karlovskiy v Matusevich/Wendelken | 6-7,6-7 |
| ITF M25 Falun MD | 2023/09/26 17:25 | Istomin/Karlovskiy v Barrett/Renard | 7-5,6-1 |
| ITF M25 Astana MD | 2023/08/01 11:55 | Lomakin/Shalkhimbayev v Istomin/Karlovskiy | 0-6,1-6 |
| Challenger Astana MD | 2023/07/27 10:45 | Matsui/Uesugi v Istomin/Karlovskiy | 6-4,7-6 |