Stadium: Court 21 Round: 25 Ground: Clay
| ITF M15 Antalya | 2021/10/26 09:20 | Marlon Vankan v Gabriel Ciro Da Silva | 6-4,6-3 |
| ITF M15 Antalya | 2021/10/25 10:30 | Marlon Vankan v Noah Schlagenhauf | 6-4,6-3 |
| ITF M15 Antalya | 2021/10/24 07:00 | Marlon Vankan v Nikita Alosha | 6-3,6-0 |
| ITF M15 Antalya | 2021/10/17 07:00 | Marlon Vankan v Oscar Galimardanov | 1-6,4-6 |
| ITF M15 Antalya | 2021/10/13 11:35 | Gergely Madarasz v Marlon Vankan | 6-4,6-4 |
| ITF M15 Forbach | 2021/09/30 16:20 | Boris Fassbender v Marlon Vankan | 6-2,6-4 |
| ITF M15 Forbach | 2021/09/29 11:00 | Hendrik Jebens v Marlon Vankan | 6-7,4-6 |
| ITF M15 Cairo | 2021/09/09 08:00 | Quentin Folliot v Marlon Vankan | 7-5,6-3 |
| 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 M25 Denia | 2021/07/25 08:00 | Denis Klok v Lorenzo Joaquin Rodriguez | 6-7,1-6 |
| ITF M25 Gandia | 2021/07/19 09:00 | Denis Klok v Nacho Serra Sanchez | 6-7,6-0,2-10 |