Stadium: Court 7 Round: 62 Ground: Clay
| ITF M25 Pardubice | 2021/09/20 09:00 | Mikalai Haliak v Sandro Szic | 7-6,6-4 |
| ITF M15 Zilina | 2021/09/01 11:45 | Mikalai Haliak v Lukas Pokorny | 2-6,1-6 |
| ITF M15 Bratislava | 2021/08/25 08:00 | Mikalai Haliak v Pavel Nejedly | 6-1,3-6,1-6 |
| ITF M15 Bratislava | 2021/03/10 09:00 | Mikalai Haliak v Andrew Paulson | 6-7,1-6 |
| ITF M15 Bratislava | 2021/03/09 09:00 | Mikalai Haliak v Kristof Minarik | 6-3,6-1 |
| ITF M15 Bratislava | 2021/03/08 09:00 | Mikalai Haliak v Matej Galik | 7-5,6-4 |
| ITF M15 Bratislava | 2021/03/04 13:30 | Kyrian Jacquet v Mikalai Haliak | 6-1,6-4 |
| ITF M15 Bratislava | 2021/03/03 09:00 | Mikalai Haliak v Martin Krumich | 6-3,2-6,6-2 |
| ITF M25 Pardubice | 2021/09/20 10:00 | Matyas Cerny v Ondrej Horak | 6-2,3-6,10-6 |
| ITF M25 Pardubice | 2021/09/19 11:00 | Matyas Cerny v Dominique Graf | 7-6,6-3 |
| UTR Pro Tennis Series Ricany | 2021/09/19 07:00 | Matyas Cerny v Adam Kozler | 4-6,6-4,5-1 |
| UTR Pro Tennis Series Ricany | 2021/09/18 09:00 | Andrey Chepelev v Matyas Cerny | 1-2 |
| UTR Pro Tennis Series Ricany | 2021/09/17 12:00 | Dominik Recek v Matyas Cerny | 6-2,0-6,3-5 |
| UTR Pro Tennis Series Ricany | 2021/09/16 08:30 | Jiri Barnat v Matyas Cerny | 6-7,0-0 |
| UTR Pro Tennis Series Ricany | 2021/09/14 12:00 | Antonin Bolardt v Matyas Cerny | 3-6,6-7 |
| UTR Pro Tennis Series Ricany | 2021/09/13 07:30 | Matyas Cerny v Petr Hajek | 1-6,2-6 |