| UTR Pro Tennis Series Amsterdam | 2021/11/04 09:00 | Nathan De Veer v Max Houkes | 0-6,6-4,6-3 |
| UTR Pro Tennis Series Amsterdam | 2021/11/03 09:00 | Nathan De Veer v Jesse Timmermans | 4-5 |
| UTR Pro Tennis Series Amsterdam | 2021/11/02 09:00 | Nathan De Veer v Thorsten Sollie | 3-6,3-5 |
| UTR Pro Tennis Series Amsterdam | 2021/11/01 12:00 | Nathan De Veer v Maxence Broville | 1-6,0-5 |
| UTR Pro Tennis Series Amsterdam | 2021/11/05 09:00 | Jip Van Assendelft v Lawrence Bataljin | 7-6,6-2 |
| UTR Pro Tennis Series Amsterdam | 2021/11/04 12:00 | Jip Van Assendelft v Johann Willems | 3-6,2-5 |
| UTR Pro Tennis Series Amsterdam | 2021/11/03 09:00 | Miko Wassermann v Jip Van Assendelft | 1-6,4-5 |
| UTR Pro Tennis Series Amsterdam | 2021/11/02 10:30 | Guy Den Heijer v Jip Van Assendelft | 6-4,5-2 |
| ITF M25 Hamburg | 2021/10/17 07:55 | Romain Faucon v Jip Van Assendelft | 1-6,6-1,11-9 |
| ITF M25 Sintra | 2021/09/15 15:20 | Jip Van Assendelft v Rio Noguchi | 6-4,0-6,1-6 |
| ITF M25 Sintra | 2021/09/14 09:55 | Jip Van Assendelft v Mirko Lagasio | 7-6,6-0 |
| ITF M25 Sintra | 2021/09/13 16:30 | Henrik Heise Korsgaard v Jip Van Assendelft | 6-3,4-6,5-10 |