Stadium: Court 5 Round: 62 Ground: Clay
| ITF M25 Marburg | 2021/07/05 14:25 | Niels Visker v Amaury Raynel | 5-7,4-6 |
| ITF M25 The Hague | 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 Valldoreix | 2021/05/13 10:10 | Roumane, Rayane v Niels Visker | 6-4,2-6,6-4 |
| ITF M15 Valldoreix | 2021/05/12 08:00 | Georgii Kravchenko v Niels Visker | 6-7,1-6 |
| ITF M15 Curtea de Arges | 2021/08/09 09:00 | Nicolas Bruna v Ray Ho | 4-6,2-6 |
| ITF M15 Curtea de Arges | 2021/08/08 10:00 | Turcu, Mihnea Lorin Stefan v Nicolas Bruna | 3-6,4-6 |
| ITF M15 Cairo | 2021/08/01 07:00 | Nicolas Bruna v Asrawy, Amr | 6-4,1-6,10-12 |
| ITF M15 Cairo | 2021/07/26 08:00 | Nicolas Bruna v Lautaro Agustin Falabella | 2-6,1-6 |
| ITF M15 Cairo | 2021/07/25 07:00 | Nicolas Bruna v Arcila, Sebastian | 6-4,6-2 |
| ITF M15 Cairo | 2021/07/21 09:55 | Ignacio Monzon v Nicolas Bruna | 3-6,6-0,6-3 |
| ITF M15 Cairo | 2021/07/20 08:00 | Nicolas Bruna v Imran D Abd Hazli | 6-2,6-1 |
| ITF M15 Cairo | 2021/07/19 08:30 | Nicolas Bruna v Luzzo, Federico | 6-1,6-2 |