Stadium: Court 1 Round: 62 Ground: Clay
| ITF M25 - Most | 2021/05/24 09:00 | Filip Duda v Jakub Nicod | 6-3,6-1 |
| ITF M25 - Most | 2021/05/23 15:00 | Filip Duda v Dominique Graf | 6-4,6-4 |
| ITF M25 - Jablonec Nad Nisou | 2021/05/18 07:30 | Jean Thirouin v Filip Duda | 3-6,6-4,10-7 |
| ITF M25 - Jablonec Nad Nisou | 2021/05/17 08:30 | Antonin Bolardt v Filip Duda | 0-6,3-6 |
| ITF M25 - Jablonec Nad Nisou | 2021/05/16 10:00 | Krystof Zapsky v Filip Duda | 6-4,3-6,9-11 |
| ITF M25 - Prag | 2021/05/11 14:15 | Thai-Son Kwiatkowski v Filip Duda | 6-3,6-1 |
| Tjeckien - Extraliga | 2020/12/14 10:40 | Robin Stanek v Filip Duda | 7-5,6-1 |
| Tjeckien - Extraliga | 2020/12/13 11:20 | Filip Duda v Michael Vrbensky | 4-6,3-6 |
| ITF M25 - Most | 2021/05/24 09:00 | Stepan Mruzek v Vojtech Vlkovsky | 7-6,6-2 |