Stadium: Court 2 Round: 25 Ground: Clay
| Challenger Salinas | 2021/04/21 17:00 | Camilo Ugo Carabelli v Tak Khunn Wang | 6-1,6-1 |
| Challenger Salinas | 2021/04/20 14:30 | Marek Gengel v Tak Khunn Wang | 2-6,3-6 |
| Challenger Salinas | 2021/04/19 14:30 | Alejandro Gonzalez v Tak Khunn Wang | 2-6,6-1,0-6 |
| Challenger Salinas | 2021/04/18 15:00 | Tak Khunn Wang v David Poljak | 6-3,6-3 |
| ITF M25 Meerbusch | 2021/04/15 10:00 | Tak Khunn Wang v Peter Heller | 1-6,3-6 |
| ITF M25 Meerbusch | 2021/04/13 13:30 | Tak Khunn Wang v Marvin Moeller | 6-4,6-3 |
| Challenger Split | 2021/04/04 10:30 | Akira Santillan v Tak Khunn Wang | 4-6,6-1,7-6 |
| Challenger Lille | 2021/03/22 10:00 | Matteo Martineau v Tak Khunn Wang | 7-5,7-5 |
| ITF M25 Meerbusch | 2021/04/11 12:30 | Mick Veldheer v Alessio Vasquez | 1-6,6-0,9-11 |
| Challenger Split | 2021/04/04 09:00 | Mick Veldheer v Uladzimir Ignatik | 1-6,3-6 |
| ITF M25 Biel | 2021/03/31 10:40 | Mick Veldheer v Alexis Gautier | 4-6,0-6 |
| ITF M25 Biel | 2021/03/30 10:00 | Mick Veldheer v Jakub Paul | 6-2,4-6,10-6 |
| ITF M25 Biel | 2021/03/29 14:30 | Mick Veldheer v Jan Sebesta | 6-3,6-1 |
| ITF M15 Poitiers | 2021/03/17 09:00 | Mick Veldheer v Martin Breysach | 1-6,6-4,6-7 |
| ITF M15 Antalya | 2021/02/24 11:25 | Matias Zukas v Mick Veldheer | 6-4,6-1 |
| ITF M15 Antalya | 2021/02/16 07:00 | David Pichler v Mick Veldheer | 6-2,6-2 |