Stadium: Court C Round: 25 Ground: Clay
| ITF M25 Prostějov | 2021/08/16 07:55 | Mark Havlicek v Jan Jermar | 6-1,6-0 |
| ITF M25 Prostějov | 2021/08/15 09:00 | Timur Mukhtarulin v Mark Havlicek | 3-6,2-6 |
| ITF M25 Most | 2021/05/24 09:00 | Antonin Bolardt v Mark Havlicek | 6-2,6-2 |
| ITF M25 Most | 2021/05/23 14:00 | Tomas Papik v Mark Havlicek | 3-6,3-6 |
| ITF M25 Prostějov | 2021/08/16 07:55 | Simon Malis v Tom Gentzsch | 6-4,5-7,10-8 |
| ITF M25 Prostějov | 2021/08/15 09:00 | Rostislav Galfinger v Simon Malis | 6-1,4-6,8-10 |