Stadium: Centre Round: 26 Ground: Clay
| ITF M25 Most | 2021/05/26 08:00 | Michael Vrbensky v Lucas Bouquet | 7-5,3-6,4-6 |
| ITF M25 Most | 2021/05/25 08:00 | Benedikt Emesz v Lucas Bouquet | 6-7,2-6 |
| ITF M25 Most | 2021/05/24 09:00 | Zdenek Derkas v Lucas Bouquet | 1-6,1-6 |
| ITF M25 Jablonec Nad Nisou | 2021/05/17 10:00 | Lucas Bouquet v Martin Krumich | 2-6,6-3,10-12 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 11:30 | Ondrej Valek v Lucas Bouquet | 7-5,2-6,7-10 |
| ITF M25 Prague | 2021/05/12 07:30 | Lucas Bouquet v Lucas Miedler | 2-6,6-2,5-7 |
| ITF M25 Prague | 2021/05/11 07:55 | Lucas Bouquet v Jean Thirouin | 6-4,7-6 |
| ITF M25 Prague | 2021/05/10 10:30 | Milos Karol v Lucas Bouquet | 6-4,3-6,5-10 |
| ITF M25 Most | 2021/05/26 12:00 | Patrik Rikl v Dominik Recek | 6-1,6-2 |
| ITF M25 Jablonec Nad Nisou | 2021/05/21 09:35 | Jiri Lehecka v Patrik Rikl | 6-1,3-6,6-2 |
| ITF M25 Jablonec Nad Nisou | 2021/05/18 08:55 | Simon Carr v Patrik Rikl | 4-6,3-6 |
| ITF M25 Prague | 2021/05/13 11:50 | Thai-Son Kwiatkowski v Patrik Rikl | 4-6,7-6,6-2 |
| ITF M25 Prague | 2021/05/12 09:30 | Markus Eriksson v Patrik Rikl | 4-6,5-7 |
| ITF M25 Prague | 2021/05/11 08:00 | Pavel Nejedly v Patrik Rikl | 2-6,2-6 |
| ITF M25 Prague | 2021/05/10 10:30 | Antonin Bolardt v Patrik Rikl | 1-6,4-6 |
| ITF M25 Prague | 2021/05/09 12:30 | Peter Samosi v Patrik Rikl | 4-6,0-6 |