| UTR Pro Tennis Series Barcelona | 2021/12/15 13:30 | Alexis Klegou v Luis Diego Chavez Villalpando | 7-6,6-3 |
| UTR Pro Tennis Series Barcelona | 2021/12/14 13:05 | Grigoriy Lomakin v Luis Diego Chavez Villalpando | 6-4,5-2 |
| UTR Pro Tennis Series Barcelona | 2021/12/13 08:00 | Fermin Calvo Barcelo v Luis Diego Chavez Villalpando | 6-2,6-3 |
| ITF M15 Melilla | 2021/09/21 16:15 | Mario G Fernandez v Luis Diego Chavez Villalpando | 6-1,7-5 |
| ITF M15 Monastir | 2021/08/30 10:00 | Adrian Arcon v Luis Diego Chavez Villalpando | 6-7,1-6 |
| ITF M15 Monastir | 2021/08/29 10:30 | Hao Sheng Koay v Luis Diego Chavez Villalpando | 4-6,6-4,9-11 |
| ITF M15 Monastir | 2021/08/24 07:30 | Mateo Nicolas Martinez v Luis Diego Chavez Villalpando | 6-4,6-4 |
| ITF M15 Monastir | 2021/08/23 08:00 | Mohamed Amin Oueslati v Luis Diego Chavez Villalpando | 2-6,0-6 |
| ITF M15 Girona | 2021/10/20 09:20 | Franco Emanuel Egea v Noah Regas | 6-1,4-6,6-3 |
| ITF M15 Platja D'Aro | 2021/10/11 08:30 | Noah Regas v Zakhar Trapeznikov | 3-6,6-1,5-10 |
| ITF M15 Platja D'Aro | 2021/10/10 08:00 | Ivan Kazakov v Noah Regas | 4-6,1-6 |
| ITF M15 Platja D'Aro | 2021/10/03 11:00 | Nil Boixader Roca v Noah Regas | 7-6,6-4 |
| UTR Pro Tennis Series Barcelona | 2021/08/08 07:00 | Noah Regas v Jordi Samper-Montana | 2-6,1-6 |
| UTR Pro Tennis Series Barcelona | 2021/08/07 07:00 | Noah Regas v Angel G Melgar | 7-5,6-3 |
| UTR Pro Tennis Series Barcelona | 2021/08/05 08:30 | Noah Regas v Daniel Sancho Arbizu | 4-6,4-6 |
| ITF M25 Reus | 2021/04/11 07:00 | Noah Regas v Francisco Andreu Garcia | 6-3,1-6,3-10 |