Stadium: Center Court Round: 26 Ground: Hardcourt indoor
| Challenger - Hambourg - Doubles Hommes | 2023/10/19 13:20 | Habib/Somani v Istomin/Karlovskiy | 4-6,6-7 |
| Challenger - Hambourg - Doubles Hommes | 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 |
| Astana, Kazakhstan, Doubles | 2023/07/27 10:45 | Matsui/Uesugi v Istomin/Karlovskiy | 6-4,7-6 |
| Astana, Kazakhstan, Doubles | 2023/07/26 11:45 | Istomin/Karlovskiy v Bertrand/Kimhi | 4-6,6-1,10-8 |
| Challenger Pozoblanco MD | 2023/07/20 21:35 | Istomin/Karlovskiy v Marrero/Moreno De Alboran | 4-6,7-6,10-12 |
| Challenger Ismaning MD | 2022/10/14 14:30 | Walkow S / Zuk K v Geerts/Niklas-Salminen | 3-6,3-6 |
| Challenger Ismaning MD | 2022/10/13 14:00 | Basic/Fatic v Walkow S / Zuk K | 2-6,1-6 |
| Challenger Ismaning MD | 2022/10/12 15:20 | Walkow S / Zuk K v Raja P / Sharan D | 6-3,3-6,10-7 |
| Challenger - Oeiras - Doubles Hommes | 2022/04/07 15:15 | Borges/Cabral v Walkow S / Zuk K | 7-5,6-7,15-13 |
| Challenger - Oeiras - Doubles Hommes | 2022/04/05 16:15 | Walkow S / Zuk K v Faria/Faria | 6-1,6-2 |
| Polish National Tour | 2020/08/01 12:05 | Walkow S / Zuk K v Drzewiecki/Matuszewski | 2-6,6-2,10-6 |
| Polish National Tour | 2020/07/31 13:55 | Walkow S / Zuk K v Mikula M / Wojcik Y | 6-3,7-6 |
| Polish National Tour | 2020/07/30 14:00 | Walkow S / Zuk K v Gajewski K / Nazaruk D | 6-2,6-3 |