| ITF M25 Jablonec Nad Nisou | 2021/05/16 10:00 | Lukas Velik v Jiri Jenicek | 4-6,0-6 |
| ITF M15 Opava | 2021/11/16 08:55 | Savriyan Danilov v Jiri Jenicek | 7-5,6-4 |
| ITF M25 Prague | 2021/10/03 08:00 | Jiri Jenicek v Jan Jermar | 6-4,4-6,6-10 |
| UTR Pro Tennis Series Ricany | 2021/09/16 07:00 | Jiri Jenicek v Dominik Suc | 6-1,3-6,1-6 |
| UTR Pro Tennis Series Ricany | 2021/09/15 09:00 | Jiri Jenicek v Marek Jaloviec | 1-6,0-6 |
| UTR Pro Tennis Series Ricany | 2021/09/14 10:30 | Jiri Jenicek v Andrew Paulson | 3-6,4-5 |
| UTR Pro Tennis Series Ricany | 2021/09/13 10:30 | Jiri Jenicek v Andrey Chepelev | 4-6,4-6 |
| UTR Pro Tennis Series Ricany | 2021/09/12 07:30 | Yurii Dzhavakian v Jiri Jenicek | 6-7,6-4,6-7 |
| UTR Pro Tennis Series Ricany | 2021/09/11 12:00 | Lawrence Bataljin v Jiri Jenicek | 1-6,1-5 |
| ITF M15 Ostrava | 2021/11/24 11:00 | Dominik Kellovsky v Lukas Velik | 6-3,6-2 |
| ITF M15 Opava | 2021/11/15 09:00 | Lukas Velik v Dominik Kellovsky | 6-3,1-6,3-10 |
| ITF M15 Opava | 2021/11/14 11:00 | Jakub Novak v Lukas Velik | 7-6,5-7,9-11 |
| ITF M25 Prague | 2021/10/04 11:15 | Daniel Paty v Lukas Velik | 6-3,6-4 |
| ITF M25 Prague | 2021/10/03 11:30 | Lukas Velik v Mark Havlicek | 4-6,6-3,10-7 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 10:00 | Lukas Velik v Jiri Jenicek | 4-6,0-6 |