Stadium: Court 1 Round: 25 Ground: Clay
| ITF - M15 Antalya | 2021/11/03 13:05 | Mircea-Alexandru Jecan v Denis Klok | 6-2,6-1 |
| ITF - M15 Antalya | 2021/10/27 11:35 | Marlon Vankan v Denis Klok | 6-0,6-0 |
| ITF - M15 Antalya | 2021/10/18 12:45 | Denis Klok v Radovan Michalik | 1-6,0-6 |
| ITF - M15 Antalya | 2021/10/17 07:00 | Denis Klok v Sven Corbinais | 6-4,6-4 |
| ITF - M15 Antalya | 2021/10/12 07:00 | Lukas Palovic v Denis Klok | 4-6,6-0,6-3 |
| ITF - M25 Skopje | 2021/09/28 11:15 | Denis Klok v Andrey Chepelev | 2-6,1-6 |
| ITF - M15 Pirot | 2021/09/23 08:00 | Denis Klok v Kristijan Juhas | 1-6,0-6 |
| ITF - M15 Zlatibor | 2021/09/14 09:30 | Denis Klok v Lukas Palovic | 3-6,3-6 |
| ITF - M15 Benicarlo | 2021/11/13 09:00 | Carlos Sanchez Jover v Ivan Gakhov | 4-6,2-6 |
| ITF - M15 Benicarlo | 2021/11/12 08:50 | Daniel Merida Aguilar v Carlos Sanchez Jover | 1-6,2-6 |
| ITF - M15 Benicarlo | 2021/11/11 09:00 | Lorenzo Rottoli v Carlos Sanchez Jover | 4-6,0-6 |
| ITF - M15 Benicarlo | 2021/11/10 08:25 | Nicolas Parizzia v Carlos Sanchez Jover | 5-7,6-7 |
| ITF - M15 Girona | 2021/10/23 09:00 | Carlos Sanchez Jover v Alexander Weis | 4-6,4-6 |
| ITF - M15 Girona | 2021/10/22 09:00 | Franco Emanuel Egea v Carlos Sanchez Jover | 3-6,4-6 |
| ITF - M15 Girona | 2021/10/21 10:20 | Max Alcala Gurri v Carlos Sanchez Jover | 6-3,3-6,2-6 |
| ITF - M15 Girona | 2021/10/19 12:00 | Matteo Donati v Carlos Sanchez Jover | 0-6,4-6 |