Stadium: AFT Court Round: 62 Ground: Clay
| ITF M25 Eupen | 2021/09/05 12:00 | Jip Van Assendelft v Joris Hoogland | 6-2,6-1 |
| 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 Eupen | 2021/09/05 10:30 | Kylian Collignon v Jing L Weng | 0-6,1-6 |
| ITF M15 Oldenzaal | 2021/08/15 12:00 | Jing L Weng v Karlo Cubelic | 3-6,1-6 |
| ITF M25 Marburg | 2021/07/05 12:25 | Jing L Weng v Raphael Collignon | 2-6,6-3,8-10 |
| ITF M25 The Hague | 2021/06/27 08:00 | Guy Den Heijer v Jing L Weng | 6-3,6-4 |
| ITF M15 Antalya | 2021/05/09 07:00 | Jing L Weng v Mark Tryakshin | 2-6,5-7 |
| ITF M15 Antalya | 2021/05/02 06:00 | Vladislav Melnic v Jing L Weng | 6-4,6-0 |
| ITF M25 Meerbusch | 2021/04/12 09:30 | David Pichler v Jing L Weng | 6-2,6-1 |
| ITF M25 Meerbusch | 2021/04/11 12:45 | Jing L Weng v Amer Naow | 6-4,7-5 |