Stadium: VIP 5 Round: 25 Ground: Clay
| ITF M15 Tehran | 2023/06/08 06:00 | Alexander Stater v Denis Klok | 3-6,6-3,7-5 |
| ITF M15 Tehran | 2023/06/07 09:55 | Manish Ganesh v Denis Klok | 2-6,2-6 |
| ITF M25 Kiseljak | 2023/06/01 12:30 | Denis Klok v Dmitry Popko | 5-7,2-6 |
| ITF M25 Kiseljak | 2023/05/31 14:00 | Mirza Basic v Denis Klok | 4-6,3-6 |
| ITF M15 Pazardzhik | 2023/05/21 07:00 | Denis Klok v Iliyan Radulov | 1-6,1-6 |
| ITF M15 Pazardzhik | 2023/05/20 07:00 | Gabriel Donev v Denis Klok | 6-7,5-7 |
| ITF M15 Pazardzhik | 2023/05/19 09:45 | Alexander Vasilev v Denis Klok | 2-6,3-6 |
| ITF M15 Pazardzhik | 2023/05/18 09:00 | Vlad Stoica v Denis Klok | 0-6,3-6 |
| ITF M15 Tehran | 2023/06/08 10:30 | Gabriele Pennaforti v Saveliy Ivanov | 6-7,6-3,6-4 |
| ITF M15 Tehran | 2023/06/07 10:00 | Giovanni Calvano v Saveliy Ivanov | 7-5,3-6,4-6 |
| ITF M15 Tehran | 2023/06/05 07:30 | Saveliy Ivanov v Amirhosein Kepadkho | 6-2,6-1 |
| ITF M25 Bodrum | 2023/05/23 06:30 | Saveliy Ivanov v Evgeny Philippov | 0-6,0-6 |
| ITF M25 Bodrum | 2023/05/22 08:00 | Saveliy Ivanov v Ivan Iutkin | 6-2,3-6,10-7 |
| ITF M15 Antalya | 2023/05/16 08:40 | Saveliy Ivanov v Collin Altamirano | 4-6,3-6 |
| ITF M15 Antalya | 2023/05/15 13:30 | Saveliy Ivanov v Pavel Kravchenko | 6-0,6-1 |
| ITF M15 Antalya | 2023/05/14 12:00 | Saveliy Ivanov v Artem Cherepin | 6-3,7-6 |