| UTR Pro Tennis Series Barcelona | 2021/06/13 07:00 | Bruno P Navarro v David Redondo | 6-0,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/06/11 09:30 | Jorge Martinez Martinez v David Redondo | 6-1,6-1 |
| UTR Pro Tennis Series Barcelona | 2021/06/10 12:30 | Jaume Pla Malfeito v David Redondo | 4-6,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/06/08 08:00 | Noah Lopez v David Redondo | 6-3,5-7,7-6 |
| UTR Pro Tennis Series Barcelona | 2021/06/07 09:30 | David Redondo v Antoine Escoffier | 5-7,5-6 |
| ITF M25 Setubal | 2021/10/04 14:15 | Vlad Cristian Breazu v Gian Luca Tanner | 6-2,1-6,6-10 |
| ITF M25 Setubal | 2021/10/03 14:00 | Luca Teboul v Vlad Cristian Breazu | 4-6,1-6 |
| ITF M15 Curtea de Arges | 2021/08/09 07:00 | Vlad Cristian Breazu v Vlad Andrei Dancu | 2-6,1-6 |
| UTR Pro Tennis Series Bucharest | 2021/06/03 10:30 | Vlad Stoica v Vlad Cristian Breazu | 6-3,6-4 |
| UTR Pro Tennis Series Bucharest | 2021/06/02 15:00 | Bogdan Borza v Vlad Cristian Breazu | 7-6,6-3 |
| UTR Pro Tennis Series Bucharest | 2021/06/02 11:30 | Radu Mihai Papoe v Vlad Cristian Breazu | 7-6,6-0 |
| UTR Pro Tennis Series Bucharest | 2021/05/30 08:00 | Vlad Cristian Breazu v Vlad Stoica | 6-3,6-1 |
| ITF M15 Bucharest | 2021/05/23 07:00 | Vlad Cristian Breazu v Vlad Andrei Dumitru | 3-6,1-6 |