Stadium: Court 3 Round: 27 Ground: Clay
| ITF M15 Kazan | 2021/03/09 12:15 | Sergey Fomin v Denis Klok | 6-2,6-4 |
| ITF M15 Antalya | 2023/12/05 11:55 | Denis Klok v Maksim Tikhomirov | 6-1,6-0 |
| ITF M15 Antalya | 2023/11/28 09:30 | Maxim Zhukov v Denis Klok | 6-4,7-5 |
| ITF M25 Telavi | 2023/10/12 07:00 | Denis Klok v Nino Serdarusic | 3-6,4-6 |
| ITF M25 Telavi | 2023/10/11 10:45 | Ilya Snitari v Denis Klok | 2-6,7-5,4-6 |
| ITF M25 Pazardzhik | 2023/10/03 09:50 | Denis Klok v Gabriel Donev | 0-6,0-6 |
| ITF M15 Arad | 2023/09/28 08:00 | Vlad Andrei Dancu v Denis Klok | 6-4,6-4 |
| ITF M15 Arad | 2023/09/27 07:00 | Mihai Razvan Marinescu v Denis Klok | 3-6,7-6,3-6 |
| ITF M15 Arad | 2023/09/26 08:25 | Ioan Alexandru Chirita v Denis Klok | 3-6,6-4,2-6 |
| ITF M15 Antalya | 2023/12/08 11:15 | Lucio Carnevalle v Sergey Fomin | 2-6,1-6 |
| ITF M15 Antalya | 2023/12/05 10:05 | Sergey Fomin v Max Houkes | 6-4,5-7,6-1 |
| ITF M15 Antalya | 2023/12/01 08:50 | Sergey Fomin v Maxim Zhukov | 6-7,0-6 |
| ITF M15 Antalya | 2023/11/28 10:05 | Sergey Fomin v Bekkhan Atlangeriev | 6-4,6-2 |
| ITF M25 Antalya | 2023/11/15 11:15 | Sergey Fomin v Tim Handel | 3-6,3-6 |
| ITF M25 Antalya | 2023/11/14 12:00 | Sergey Fomin v Marko Maksimovic | 7-5,6-4 |
| ITF M25 Antalya | 2023/11/14 09:35 | Sergey Fomin v Ivan Denisov | 6-1,7-5 |
| ITF M25 Antalya | 2023/11/12 07:00 | Sergey Fomin v Amir Milushev | 6-0,2-6,10-8 |