| UTR Pro Tennis Series Brasov | 2021/10/25 10:00 | Vasile Antonescu v Edris Fetisleam | 3-6,1-5 |
| ITF M25 Bacau | 2021/08/18 12:00 | Vasile Antonescu v Tiago Cacao | 2-6,4-6 |
| ITF M25 Bacau | 2021/08/17 07:00 | Vasile Antonescu v Alessandro Bellifemine | 7-6,6-3 |
| ITF M15 Curtea de Arges | 2021/08/08 10:00 | Radu Mihai Papoe v Vasile Antonescu | 6-0,6-4 |
| UTR Pro Tennis Series Mulheim | 2021/07/31 08:30 | Vasile Antonescu v Alexander Hoogmartens | 5-7,7-6,6-1 |
| UTR Pro Tennis Series Mulheim | 2021/07/30 12:56 | Vasile Antonescu v Francois Musitelli | 6-1,6-4 |
| UTR Pro Tennis Series Mulheim | 2021/07/30 07:00 | Tim Gennes v Vasile Antonescu | 0-6,6-7 |
| UTR Pro Tennis Series Mulheim | 2021/07/29 10:00 | Hendrik Jebens v Vasile Antonescu | 4-6,7-6,6-2 |
| UTR Pro Tennis Series Brasov | 2021/10/25 10:00 | Ioan Alexandru Chirita v Vladimir Popov | 6-2,6-2 |
| UTR Pro Tennis Series Sofia | 2021/09/04 07:00 | Ioan Alexandru Chirita v Volodymyr Uzhylovskyi | 4-3 |
| UTR Pro Tennis Series Sofia | 2021/09/03 10:00 | Ioan Alexandru Chirita v Mihael Mihaylov | 7-5,5-3 |
| UTR Pro Tennis Series Sofia | 2021/09/02 11:30 | Ioan Alexandru Chirita v Tadija Radovanovic | 6-1,6-5 |
| UTR Pro Tennis Series Sofia | 2021/09/01 06:30 | Ioan Alexandru Chirita v Veselin Kiselkov | 6-2,6-2 |
| UTR Pro Tennis Series Sofia | 2021/08/31 11:00 | Ioan Alexandru Chirita v Adriano Dzhenev | 6-3,2-6,0-5 |
| UTR Pro Tennis Series Sofia | 2021/08/30 10:00 | Ioan Alexandru Chirita v Simeon Terziev | 4-6,6-3,3-6 |
| ITF M25 Bacau | 2021/08/17 09:15 | Ray Ho v Ioan Alexandru Chirita | 6-4,6-0 |