Stadium: Center Court Round: 25 Ground: Hardcourt indoor
| ITF M25 Sarreguemines | 2021/10/27 08:00 | Wang, Tak Khunn v Antoine Bellier | 4-6,6-2,3-6 |
| ITF M25 Uriage | 2021/07/14 18:00 | Nazim Makhlouf v Wang, Tak Khunn | 5-7,1-6 |
| ITF - M15 Shymkent | 2021/05/27 08:00 | Louroi Martinez v Wang, Tak Khunn | 3-6,7-5,5-7 |
| ITF - M15 Shymkent | 2021/05/25 09:15 | Tashbulatov, Dostanbek v Wang, Tak Khunn | 1-6,0-6 |
| Challenger Salinas 2 | 2021/04/29 16:30 | Wang, Tak Khunn v Hiroki Moriya | 0-6,6-7 |
| Challenger Salinas 2 | 2021/04/28 16:35 | Nick Chappell v Wang, Tak Khunn | 6-3,1-6,5-7 |
| Challenger Salinas 2 | 2021/04/27 14:30 | Nicolas Alvarez v Wang, Tak Khunn | 6-7,4-6 |
| Challenger Salinas 2 | 2021/04/26 19:40 | Wang, Tak Khunn v Gonzalez, Alejandro | 6-2,3-6,6-2 |
| ITF - M25 Saint-Dizier | 2021/11/01 15:05 | Leopold Zima v Tibo Colson | 7-5,6-2 |
| ITF M15 Selva Gardena | 2021/10/26 09:20 | Leopold Zima v Mattia Bellucci | 4-6,6-7 |
| ITF M15 Selva Gardena | 2021/10/25 10:05 | Leopold Zima v Simone Vaccari | 7-5,6-4 |
| ITF M15 Selva Gardena | 2021/10/24 16:05 | Leopold Zima v Favero, Lorenzo | 6-0,6-0 |
| ITF M25 Prague | 2021/10/06 15:20 | David Poljak v Leopold Zima | 6-4,6-1 |
| ITF M25 Falun | 2021/09/29 15:20 | Kirkov, Vasil v Leopold Zima | 6-4,6-4 |
| ITF M25 Falun | 2021/09/28 10:55 | Leopold Zima v Marvin Moeller | 6-3,6-3 |
| ITF M25 Falun | 2021/09/27 10:20 | Leopold Zima v Jonathan Stenberg | 6-4,6-4 |