Stadium: Court 13 Round: 62
| ITF M25 - Eupen | 2021/09/09 10:45 | Matteo Arnaldi v Niels Visker | 7-6,6-2 |
| ITF M25 - Eupen | 2021/09/08 11:55 | Niels Visker v Loic Cloes | 7-6,6-4 |
| ITF M25 Marburg | 2021/07/05 14:25 | Niels Visker v Amaury Raynel | 5-7,4-6 |
| ITF M25 - Den Haag | 2021/06/30 10:00 | Niels Visker v Joao Lucas Reis da Silva | 6-4,4-6,4-6 |
| ITF M25 - Alkmaar | 2021/06/20 18:00 | Deney Wassermann v Niels Visker | 7-6,6-7,10-6 |
| ITF M15 - Skopje | 2021/06/02 09:55 | Niels Visker v Ryan Nijboer | 6-4,3-6,4-6 |
| ITF M15 - Skopje | 2021/06/01 08:00 | Niels Visker v Tom Gentzsch | 6-4,6-1 |
| ITF M15 - Skopje | 2021/05/31 08:00 | Niels Visker v Lazar Milicevic | 6-7,6-3,12-10 |
| ITF M15 Platja D'Aro | 2021/10/04 11:00 | Pedro Iamachkine v Max Alcala Gurri | 4-6,2-6 |
| ITF M15 Platja D'Aro | 2021/10/03 08:00 | Ilya Rudiukov v Pedro Iamachkine | 6-3,4-6,8-10 |
| ITF M15 - Valldoreix | 2021/05/09 12:00 | Pedro Iamachkine v Oleg Prihodko | 0-6,3-6 |
| ITF M15 - Šibenik | 2021/04/18 08:00 | Simon Beaupain v Pedro Iamachkine | 7-6,6-1 |
| ITF M25 - Reus | 2021/04/11 07:00 | Allan Deschamps v Pedro Iamachkine | 4-6,6-2,10-3 |
| ITF - M15 Monastir | 2020/11/30 09:00 | Giorgio Tabacco v Pedro Iamachkine | 6-3,6-2 |
| ITF - M15 Monastir | 2020/11/25 15:00 | Kenneth Raisma v Pedro Iamachkine | 6-4,6-2 |
| ITF - M15 Monastir | 2020/11/25 08:30 | Theo Arribage v Pedro Iamachkine | 2-6,6-2,8-10 |