| ITF M15 Monastir | 2021/07/12 08:00 | Jake Van Emburgh v Fermin Calvo Barcelo | 6-3,3-6,10-6 |
| ITF M15 Monastir | 2021/07/05 09:00 | Fermin Calvo Barcelo v Valentin Vacherot | 4-6,1-6 |
| UTR Pro Tennis Series Barcelona | 2021/05/02 10:00 | Ilya Snitari v Fermin Calvo Barcelo | 7-6,6-4 |
| UTR Pro Tennis Series Barcelona | 2021/05/01 11:00 | Warren Sinius v Fermin Calvo Barcelo | 0-6,0-5 |
| UTR Pro Tennis Series Barcelona | 2021/04/29 09:30 | Fermin Calvo Barcelo v Pol Toledo Bague | 2-6,0-6 |
| UTR Pro Tennis Series Barcelona | 2021/04/28 13:20 | Fermin Calvo Barcelo v Noah Lopez | 5-7,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/04/26 09:30 | Fermin Calvo Barcelo v Ronald Slobodchikov | 4-6,3-6 |
| ITF M25 Telfs | 2021/07/14 07:55 | George Botezan v Ondrej Horak | 6-4,2-6,5-7 |
| ITF M25 Telfs | 2021/07/13 09:10 | Taiyo Yamanaka v George Botezan | 1-6,1-6 |
| ITF M25 Telfs | 2021/07/12 13:55 | Martin Benes v George Botezan | 7-6,3-6,5-10 |
| ITF M25 Belgrade | 2021/06/30 08:40 | Edoardo Lavagno v George Botezan | 6-2,4-6,6-1 |
| ITF M25 Belgrade | 2021/06/29 09:00 | George Botezan v Nikola Slavic | 4-6,2-6 |
| ITF M25 Belgrade | 2021/06/28 07:00 | George Botezan v Tadija Radovanovic | 7-6,6-2 |
| ITF M25 Belgrade | 2021/06/27 07:00 | Denis Klok v George Botezan | 3-6,1-6 |
| UTR Pro Tennis Series Bucharest | 2021/06/03 07:30 | George Botezan v Oscar Jose Gutierrez | 0-6,3-6 |