| UTR Pro Tennis Series Bucharest | 2021/06/02 10:00 | Nicolae Frunza v Vasile Antonescu | 6-7,0-6 |
| ITF M25 Pitesti | 2019/08/14 10:05 | Vasile Antonescu v Nicolae Frunza | 3-6,2-6 |
| ITF Romania F11 | 2017/08/22 10:55 | Nicolae Frunza v Vasile Antonescu | 7-5,5-7,2-6 |
| ITF Hungary F2 | 2016/04/28 08:00 | Nicolae Frunza v Vasile Antonescu | 6-4,6-4 |
| 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 Mulheim | 2021/07/27 11:00 | Marvin Schaber v Vasile Antonescu | 1-6,6-4,2-6 |
| ITF M15 Antalya | 2021/10/20 10:20 | Gabriele Maria Noce v Nicolae Frunza | 4-6,2-6 |
| ITF M15 Antalya | 2021/10/13 09:20 | Bogdan Ionut Apostol v Nicolae Frunza | 7-6,7-6 |
| Challenger Sibiu | 2021/09/27 09:50 | Nicolae Frunza v Nicholas David Ionel | 6-4,3-6,6-7 |
| Challenger Sibiu | 2021/09/26 11:10 | Oleksii Krutykh v Nicolae Frunza | 2-6,6-7 |
| Challenger Bucharest | 2021/09/21 07:00 | Nicolae Frunza v Filip Horansky | 6-7,4-6 |
| Challenger Banja Luka | 2021/09/05 09:00 | Nicolae Frunza v Martin Cuevas | 4-6,6-7 |
| Challenger Warsaw | 2021/08/22 10:50 | Alexander Shevchenko v Nicolae Frunza | 6-1,6-2 |
| ITF M15 Curtea de Arges | 2021/08/12 08:55 | Tiago Cacao v Nicolae Frunza | 6-4,6-4 |