Stadium: Cancha 4 Round: 19 Ground: Hardcourt outdoor
| Challenger Salinas | 2021/04/18 19:10 | Gonzalez, Alejandro v Panta Herreros, Jorge Brian | 6-0,6-1 |
| ATP - Acapulco | 2021/03/15 00:00 | Denis Kudla v Gonzalez, Alejandro | 6-3,6-2 |
| ITF - M25 Naples | 2021/02/26 16:00 | Rodriguez, Cristian v Gonzalez, Alejandro | 6-3,5-7,7-6 |
| ITF - M25 Naples | 2021/02/25 17:10 | Gonzalez, Alejandro v Matija Pecotic | 6-1,7-5 |
| ITF - M25 Naples | 2021/02/24 15:00 | Toledo Bague, Pol v Gonzalez, Alejandro | 3-6,1-6 |
| ITF - M25 Naples | 2021/02/19 16:00 | Mitchell Krueger v Gonzalez, Alejandro | 6-2,6-3 |
| ITF - M25 Naples | 2021/02/18 15:00 | Gonzalez, Alejandro v Strong Kirchheimer | 3-6,7-6,7-6 |
| ITF - M25 Naples | 2021/02/17 16:25 | Panta Herreros, Jorge Brian v Gonzalez, Alejandro | 5-7,1-6 |
| Challenger Salinas | 2021/04/18 15:00 | Wang, Tak Khunn v David Poljak | 6-3,6-3 |
| ITF M25 Meerbusch | 2021/04/15 10:00 | Wang, Tak Khunn v Peter Heller | 1-6,3-6 |
| ITF M25 Meerbusch | 2021/04/13 13:30 | Wang, Tak Khunn v Marvin Moeller | 6-4,6-3 |
| Challenger - Split | 2021/04/04 10:30 | Akira Santillan v Wang, Tak Khunn | 4-6,6-1,7-6 |
| Challenger - Lille | 2021/03/22 10:00 | Matteo Martineau v Wang, Tak Khunn | 7-5,7-5 |
| Challenger - Lille | 2021/03/21 11:15 | Wang, Tak Khunn v Antoine Escoffier | 5-7,6-4,6-4 |
| ITF - M25 Vale Do Lobo | 2021/03/13 13:20 | Sebastian Fanselow v Wang, Tak Khunn | 6-1,6-3 |
| ITF - M25 Vale Do Lobo | 2021/03/12 12:30 | Wang, Tak Khunn v Cabral, Francisco | 6-2,6-2 |