Stadium: Court 3 Round: 45 Ground: Carpet indoor
| ITF Poland F2 | 2016/05/31 08:00 | Szymon Walkow v Marek Gengel | 0-6,6-4,1-6 |
| ITF Czech Republic F2 | 2016/05/17 08:00 | Marek Gengel v Szymon Walkow | 6-4,6-3 |
| ITF M25 Nussloch | 2019/01/21 10:20 | Marek Gengel v Maik Steiner | 7-5,6-2 |
| Challenger Koblenz | 2019/01/14 18:20 | Marek Gengel v Roberto Ortega-Olmedo | 6-7,3-6 |
| ITF M15 Monastir | 2019/01/09 08:00 | Adelchi Virgili v Marek Gengel | 6-4,6-2 |
| Czech Extraliga | 2018/12/17 09:00 | Zdenek Kolar v Marek Gengel | 7-5,6-4 |
| Czech Extraliga | 2018/12/14 09:00 | Marek Gengel v Jan Stancik | 4-6,4-6 |
| 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 M25 Nussloch | 2019/01/21 10:30 | Karlo Cubelic v Szymon Walkow | 6-7,6-3,8-10 |
| Czech Extraliga | 2018/12/15 13:32 | Szymon Walkow v Kenny de Schepper | 2-6,1-5 |
| Czech Extraliga | 2018/12/14 09:00 | Luca Vanni v Szymon Walkow | 6-3,6-3 |
| ITF Czech Republic F10 | 2018/11/16 11:10 | Ondrej Krstev v Szymon Walkow | 7-5,6-0 |
| ITF Czech Republic F10 | 2018/11/15 11:30 | Luke Johnson v Szymon Walkow | 6-2,4-6,4-6 |
| ITF Czech Republic F8 | 2018/10/30 11:15 | Szymon Walkow v Georgii Kravchenko | 4-6,7-6,3-6 |
| ITF Czech Republic F8 | 2018/10/29 13:00 | Szymon Walkow v Milos Vukovic | 6-1,6-3 |
| Challenger Ismaning | 2018/10/15 10:30 | Szymon Walkow v Johannes Haerteis | 4-6,4-6 |