| ITF Czech Republic F12 | 2018/11/28 09:00 | Marek Gengel v Robin Stanek | 6-1,3-6,6-7 |
| ITF Czech Republic F11 | 2018/11/21 09:00 | Artem Dubrivnyy v Marek Gengel | 7-6,7-6 |
| ITF Czech Republic F10 | 2018/11/16 09:00 | Michael Vrbensky v Marek Gengel | 6-1,6-3 |
| ITF Czech Republic F10 | 2018/11/15 09:00 | Robin Stanek v Marek Gengel | 4-6,6-2,3-6 |
| ITF Czech Republic F10 | 2018/11/14 09:00 | Marek Gengel v Tadeas Paroulek | 6-3,6-0 |
| Challenger Bratislava | 2018/11/03 14:05 | Matteo Viola v Marek Gengel | 6-2,6-1 |
| ITF Czech Republic F7 | 2018/10/24 08:00 | Marek Gengel v Ivan Marrero Curbelo | 5-7,5-7 |
| Challenger Ismaning | 2018/10/14 10:20 | Marek Gengel v Johannes Haerteis | 2-6,2-6 |