Stadium: Court 7 Round: 25 Ground: Clay
| 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 |
| UTR Pro Tennis Series Bucharest | 2021/06/02 14:30 | George Botezan v Ioan Alexandru Chirita | 1-6,2-6 |
| ITF M25 Telfs | 2021/07/13 07:30 | Neil Oberleitner v Ondrej Horak | 4-6,4-6 |
| ITF M25 Telfs | 2021/07/12 07:55 | Ondrej Horak v Samuel Puskar | 6-3,6-4 |
| ITF M25 Wroclaw | 2021/06/28 10:00 | Daniel Dutra Da Silva v Ondrej Horak | 3-6,0-6 |
| ITF M15 Skopje | 2021/06/07 08:30 | Leonid Sheyngezikht v Ondrej Horak | 6-0,7-5 |
| ITF M15 Skopje | 2021/06/06 09:00 | Ondrej Horak v Luigi Sorrentino | 6-0,1-6,11-9 |
| ITF M15 Skopje | 2021/05/30 09:30 | Ondrej Horak v Viktor Jovic | 4-6,3-6 |
| ITF M25 Most | 2021/05/23 14:00 | Martin Damm v Ondrej Horak | 7-5,6-4 |
| ITF M25 Jablonec Nad Nisou | 2021/05/17 07:30 | Ondrej Horak v Tomas Papik | 1-6,4-6 |