Stadium: Court 5 Round: 54 Ground: Clay
| 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 | Rayane Roumane 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 Valldoreix | 2021/05/11 08:00 | Niels Visker v Francisco Cabral | 7-5,6-0 |
| ITF M25 Bourg-en-Bresse | 2021/06/27 11:45 | Amaury Raynel v Bradley Paliska | 0-6,3-6 |
| ITF M25 Alkmaar | 2021/06/23 18:05 | Dax Donders v Amaury Raynel | 5-7,6-3,6-1 |
| ITF M25 Alkmaar | 2021/06/21 16:00 | Amaury Raynel v Yan Sabanin | 6-1,2-6,10-7 |
| ITF M25 Alkmaar | 2021/06/20 13:00 | Pedro Vives Marcos v Amaury Raynel | 6-4,3-6,8-10 |
| ITF M15 Sarajevo | 2021/06/01 08:00 | Amaury Raynel v Valentin Lapalu | 4-6,3-6 |
| ITF M15 Sarajevo | 2021/05/31 12:00 | Yann Wojcik v Amaury Raynel | 6-7,3-6 |
| ITF M15 Sibenik | 2021/05/18 10:45 | Amaury Raynel v Oscar Moraing | 3-6,3-6 |
| ITF M15 Sibenik | 2021/05/17 14:55 | Janos Fekete v Amaury Raynel | 6-7,6-2,4-10 |