Stadium: Court 5 Round: 25 Ground: Clay
| 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 |
| UTR Pro Tennis Series Mulheim | 2021/07/26 12:30 | Vasile Antonescu v John Sperle | 6-3,5-2 |
| ITF M15 Curtea de Arges | 2021/08/14 11:20 | Facundo Juarez v Tiago Cacao | 6-3,1-6,7-6 |
| ITF M15 Curtea de Arges | 2021/08/12 08:55 | Tiago Cacao v Nicolae Frunza | 6-4,6-4 |
| ITF M15 Curtea de Arges | 2021/08/11 10:10 | Tiago Cacao v Gergely Madarasz | 6-3,6-4 |
| ITF M25 Idanha-A-Nova | 2021/07/22 09:55 | Alafia Ayeni v Tiago Cacao | 7-6,6-4 |
| ITF M25 Idanha-A-Nova | 2021/07/21 11:10 | Dhruva Mulye v Tiago Cacao | 2-6,2-6 |
| ITF M25 Idanha-A-Nova | 2021/07/16 09:55 | Daniel Rodrigues v Tiago Cacao | 6-3,7-5 |
| ITF M25 Idanha-A-Nova | 2021/07/15 13:00 | Daniel Little v Tiago Cacao | 4-6,0-6 |
| ITF M25 Idanha-A-Nova | 2021/07/14 11:05 | Roy Smith v Tiago Cacao | 5-7,6-3,6-7 |