| ITF M25 Ricany | 2021/09/02 07:55 | Filip Duda v Marek Gengel | 3-6,3-6 |
| 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 M15 Sharm El Sheikh | 2021/10/20 10:15 | Marek Gengel v Ondrej Horak | 6-0,6-2 |
| ITF M15 Sharm El Sheikh | 2021/10/17 08:00 | Marek Gengel v Peter Fajta | 6-4,6-0 |
| ITF M15 Sharm El Sheikh | 2021/10/16 08:00 | Marek Gengel v Nam Hoang Ly | 7-6,5-7,7-6 |
| ITF M15 Sharm El Sheikh | 2021/10/15 08:00 | Marek Gengel v Neil Oberleitner | 6-2,6-1 |
| ITF M15 Sharm El Sheikh | 2021/10/14 08:00 | Marek Gengel v Michal Mikula | 6-4,6-3 |
| ITF M15 Sharm El Sheikh | 2021/10/13 08:00 | Marek Gengel v Romain Faucon | 6-2,6-4 |
| ITF M25 Prague | 2021/10/08 09:00 | Khumoyun Sultanov v Marek Gengel | 3-6,6-3,6-4 |
| ITF M25 Prague | 2021/10/07 10:15 | Jakub Paul v Marek Gengel | 2-6,4-6 |
| UTR Pro Tennis Series Mulheim | 2021/10/13 11:30 | Filip Duda v Christian Hansen | 6-2,2-5 |
| UTR Pro Tennis Series Mulheim | 2021/10/12 11:30 | Filip Duda v Tom Gentzsch | 6-4,5-2 |
| UTR Pro Tennis Series Mulheim | 2021/10/11 08:30 | Quin Verstegen v Filip Duda | 6-2,3-6,5-4 |
| ITF M25 Prague | 2021/10/07 11:35 | Filip Duda v Sanjar Fayziev | 3-6,1-6 |
| ITF M25 Prague | 2021/10/05 08:00 | Filip Duda v Daniel Siniakov | 6-1,6-4 |
| ITF M25 Prague | 2021/10/04 08:00 | Filip Duda v Tomas Lanik | 3-6,6-4,10-3 |
| ITF M25 Prague | 2021/10/03 14:00 | Filip Duda v Tomas Krcma | 6-0,6-0 |
| ITF M25 Budapest | 2021/10/01 09:25 | Zsombor Piros v Filip Duda | 6-2,3-6,6-3 |