Stadion: Court 3 Round: 26 Ground: Clay
| ITF - M15 - Piestany | 2019/05/10 14:50 | Marek Gengel v Filip Duda | 6-1,7-6 |
| ITF Czech Republic F7 | 2017/10/26 08:00 | Filip Duda v Marek Gengel | 6-7,6-3,7-6 |
| ITF - M25 - Ricany | 2021/09/01 10:05 | Noel Larwig v Filip Duda | 2-6,2-6 |
| ITF - M15 - Antalya | 2021/06/22 07:00 | Vladimir Korolev v Filip Duda | 6-3,2-6,10-4 |
| ITF - M15 - Antalya | 2021/06/21 11:35 | Dian Nedev v Filip Duda | 4-6,2-6 |
| ITF - M15 - Antalya | 2021/06/20 07:00 | Kaya Arinc v Filip Duda | 0-6,4-6 |
| ITF - M15 - Antalya | 2021/06/15 07:30 | Tadeas Paroulek v Filip Duda | 6-2,6-4 |
| ITF - M15 - Antalya | 2021/06/14 13:45 | Daiki Yoshimura v Filip Duda | 3-6,6-7 |
| ITF - M15 - Antalya | 2021/06/13 07:30 | Farzin Danny Amiri v Filip Duda | 6-3,4-6,6-10 |
| ITF - M25 - Most | 2021/05/26 08:00 | Filip Duda v Pavel Nejedly | 4-6,2-6 |
| ITF - M25 - Ricany | 2021/09/01 09:05 | Marek Gengel v Daniel Siniakov | 7-5,6-3 |
| Challenger - Prag | 2021/08/22 08:00 | Marek Gengel v Alex Rybakov | 5-7,1-6 |
| ITF - M25 - Prostejov | 2021/08/18 07:55 | Alex Rybakov v Marek Gengel | 6-3,6-3 |
| ITF - M25 - Prostejov | 2021/08/17 07:55 | Marek Gengel v Christopher Patzanovsky | 6-2,6-0 |
| Challenger - Prag | 2021/08/08 11:20 | Marek Gengel v Emilio Nava | 4-6,3-6 |
| ITF - M25 - Grodzisk Mazowiecki | 2021/08/04 15:00 | Philip Bachmaier v Marek Gengel | 6-3,6-4 |
| ITF - M15 - Castelo Branco | 2021/07/29 13:15 | Marek Gengel v Daniel Batista | 4-6,6-3,3-6 |
| ITF - M15 - Castelo Branco | 2021/07/28 08:30 | Marek Gengel v Ray Ho | 6-2,2-6,6-3 |