Stadium: Court 1 Round: 25 Ground: Clay
| 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 |
| Challenger Lille | 2021/03/21 11:15 | Tak Khunn Wang v Antoine Escoffier | 5-7,6-4,6-4 |
| ITF M25 Vale Do Lobo | 2021/03/13 13:20 | Sebastian Fanselow v Tak Khunn Wang | 6-1,6-3 |
| ITF M25 Vale Do Lobo | 2021/03/12 12:30 | Tak Khunn Wang v Francisco Cabral | 6-2,6-2 |
| ITF M25 Vale Do Lobo | 2021/03/11 10:25 | Antoine Escoffier v Tak Khunn Wang | 6-7,4-6 |
| ITF M25 Vale Do Lobo | 2021/03/10 15:20 | Alexis Boureau v Tak Khunn Wang | 3-6,1-6 |
| ITF M25 Faro | 2021/03/06 10:25 | Tak Khunn Wang v Lucas Poullain | 3-6,6-7 |
| ITF M25 Biel | 2021/03/29 12:05 | Yann Marti v Marvin Moeller | 6-4,6-7,10-5 |
| ITF M15 Poitiers | 2021/03/19 13:10 | Kyrian Jacquet v Marvin Moeller | 6-2,6-3 |
| ITF M15 Poitiers | 2021/03/17 10:30 | Marvin Moeller v Jean-Jacques Rakotohasy | 6-2,6-1 |
| ITF M25 Trimbach | 2021/03/11 12:00 | Dominic Stephan Stricker v Marvin Moeller | 6-1,6-4 |
| ITF M25 Trimbach | 2021/03/10 09:00 | Patrik Hartmeier v Marvin Moeller | 1-6,7-6,2-6 |
| ITF M15 Monastir | 2021/02/16 13:00 | Marvin Moeller v Naoki Tajima | 2-6,3-6 |
| ITF M15 Monastir | 2021/02/09 10:30 | Lukas Mugevicius v Marvin Moeller | 6-3,6-2 |
| ITF M15 Monastir | 2021/02/04 11:00 | Skander Mansouri v Marvin Moeller | 6-0,6-1 |