Stadium: Court 6 Round: 62 Ground: Clay
| ITF M25 Alkmaar | 2021/06/20 12:00 | Jip Van Assendelft v Benjamin Dhoe | 2-6,3-6 |
| ITF M15 Antalya | 2021/05/30 07:30 | Jip Van Assendelft v Nicolas Agustin Lema | 4-6,7-6,10-12 |
| ITF M15 Antalya | 2021/05/24 10:00 | Jip Van Assendelft v Davide Albertoni | 2-6,1-6 |
| ITF M15 Antalya | 2021/05/23 07:00 | John Sperle v Jip Van Assendelft | 5-7,7-5,4-10 |
| ITF M15 Monastir | 2021/04/11 10:00 | Jip Van Assendelft v Piotr Matuszewski | 5-7,4-6 |
| ITF M15 Monastir | 2021/04/05 09:00 | Jip Van Assendelft v Romain Faucon | 3-6,6-1,7-10 |
| ITF M15 Monastir | 2021/04/04 10:30 | Justin Roberts v Jip Van Assendelft | 1-6,3-6 |
| ITF M25 Trimbach | 2021/03/08 13:35 | Patrik Hartmeier v Jip Van Assendelft | 7-5,7-5 |
| ITF M25 Bourg-en-Bresse | 2021/06/27 14:00 | Adrian Obert v Joris Hoogland | 6-1,6-1 |
| ITF M15 Sarajevo | 2021/05/30 10:30 | Marino Jakic v Joris Hoogland | 6-3,6-2 |
| ITF M25 Kiseljak | 2021/05/23 08:15 | Tim Heger v Joris Hoogland | 7-6,6-4 |
| ITF M15 Sibenik | 2021/05/16 07:30 | Joris Hoogland v Martin Zeljenka | 6-7,3-6 |
| ITF M15 Prijedor | 2021/05/09 07:00 | Joris Hoogland v Milos Vukovic | 2-6,2-6 |
| ITF M15 Monastir | 2021/01/10 13:00 | Joris Hoogland v Dominik Palan | 0-6,2-6 |
| ITF M15 Monastir | 2021/01/10 09:00 | Joris Hoogland v Arthur Bonnaud | 4-6,6-4,11-9 |
| ITF M15 Monastir | 2021/01/03 11:00 | Cyril Vandermeersch v Joris Hoogland | 6-3,6-1 |