Stadium: Court 5 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2021/10/18 08:00 | Sergei Pogosian v Michael Bassem Sobhy | 6-7,7-5,10-7 |
| ITF M15 Sharm El Sheikh | 2021/10/12 09:00 | Sergei Pogosian v Lukas Pokorny | 1-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/10/11 11:00 | Sergei Pogosian v Nikoloz Davlianidze | 6-1,6-4 |
| ITF M15 Cairo | 2021/08/03 08:30 | Sergei Pogosian v Amr Asrawy | 5-7,5-7 |
| ITF M15 Cairo | 2021/08/01 12:30 | Sergei Pogosian v Sami Ben Abdennibi | 6-4,7-6 |
| ITF M15 Cairo | 2021/07/25 07:00 | Edoardo Zanada v Sergei Pogosian | 6-2,6-7,10-6 |
| ITF M15 Cairo | 2021/07/21 08:00 | Sergei Pogosian v Daisuke Sumizawa | 2-6,4-6 |
| ITF M15 St Petersburg Qual | 2021/04/11 12:25 | Victor Ernaelsteen v Sergei Pogosian | 6-3,7-5 |
| ITF M15 Sharm El Sheikh | 2021/10/18 08:00 | Pavlos Parson v Ondrej Horak | 3-6,6-1,9-11 |
| ITF M25 Prague | 2021/10/04 11:15 | Artem Dubrivnyy v Ondrej Horak | 6-4,6-0 |
| ITF M25 Prague | 2021/10/03 10:30 | Matej Galik v Ondrej Horak | 3-6,1-6 |
| ITF M25 Pardubice | 2021/09/20 10:00 | Matyas Cerny v Ondrej Horak | 6-2,3-6,10-6 |
| ITF M25 Ricany | 2021/08/29 08:00 | Ondrej Horak v Lambert Ruland | 1-6,1-6 |
| ITF M15 Bad Waltersdorf | 2021/08/23 09:00 | Ondrej Horak v Alessandro Ragazzi | 3-6,6-4,4-10 |
| ITF M15 Warmbad-Villach | 2021/08/17 08:00 | Philip Bachmaier v Ondrej Horak | 6-2,6-0 |
| ITF M15 Warmbad-Villach | 2021/08/16 12:30 | Leonardo Chiari v Ondrej Horak | 3-6,2-6 |