Stadium: Court 8 Round: 62 Ground: Clay
| ITF M15 Platja D'Aro | 2021/10/13 08:30 | Jose Fco. Vidal Azorin v Niels Visker | 6-1,6-3 |
| ITF M15 Platja D'Aro | 2021/10/12 08:30 | Niels Visker v Eero Vasa | 1-6,6-3,10-8 |
| ITF M15 Platja D'Aro | 2021/10/10 11:00 | Niels Visker v Pedro Iamachkine | 7-5,6-3 |
| 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 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 Platja D'Aro | 2021/10/10 11:00 | Pol Fernandez v Kuzey Cekirge | 2-6,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/10/03 08:30 | Jordi Mas De Ugarte v Pol Fernandez | 1-6,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/10/02 11:30 | Pol Fernandez v Xavier Gabarro | 7-6,2-0 |
| UTR Pro Tennis Series Barcelona | 2021/10/01 08:00 | Pol Fernandez v Ervin H Eminefendic | 6-2,2-6,0-5 |
| UTR Pro Tennis Series Barcelona | 2021/09/29 08:00 | Pol Fernandez v Noah Lopez | 6-7,1-6 |
| UTR Pro Tennis Series Barcelona | 2021/09/28 11:00 | Pol Fernandez v George Botezan | 6-4,6-7,4-5 |
| UTR Pro Tennis Series Barcelona | 2021/09/27 09:30 | Fermin Calvo Barcelo v Pol Fernandez | 6-4,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/08/04 08:30 | Pol Fernandez v Xavier Gabarro | 2-2 |