Stadium: Court C Round: 46
| Challenger Portoroz Qual | 2017/08/05 07:30 | Enej Berghaus v Igor Zelenay | 6-7,1-6 |
| Challenger Bratislava Qual | 2016/11/05 17:10 | Igor Zelenay v Filip Horansky | 6-7,7-6,6-7 |
| Challenger Bratislava Qual | 2016/11/05 13:40 | Tsung-Hua Yang v Igor Zelenay | 3-6,4-6 |
| Challenger Prague 2 | 2016/07/26 11:10 | Uladzimir Ignatik v Igor Zelenay | 6-3,6-2 |
| Challenger Prague 2 | 2016/07/24 09:00 | Igor Zelenay v Frank Moser | 6-1,6-1 |
| Challenger Prague 2 | 2016/07/23 09:00 | Antoine Bellier v Igor Zelenay | 7-5,6-7,5-7 |
| Challenger Liberec Qual | 2017/07/29 08:30 | Michal Schmid v Marek Gengel | 7-6,6-2 |
| Challenger Prague Qual | 2017/07/23 11:00 | Lenny Hampel v Marek Gengel | 7-6,6-1 |
| Challenger Prague Qual | 2017/07/22 09:20 | Marek Gengel v Mate Delic | 6-1,6-2 |
| ITF Czech Republic F6 | 2017/07/19 12:25 | Marek Gengel v Lukas Klein | 5-7,1-6 |
| ITF Czech Republic F6 | 2017/07/17 09:30 | Juan Ignacio Galarza v Marek Gengel | 3-6,6-7 |
| ITF Czech Republic F5 | 2017/07/11 15:15 | Petr Michnev v Marek Gengel | 4-6,7-5,6-1 |
| ITF Czech Republic F4 | 2017/07/06 08:30 | Marek Jaloviec v Marek Gengel | 7-6,6-3 |
| ITF Czech Republic F4 | 2017/07/05 08:00 | Petr Hajek v Marek Gengel | 0-6,3-6 |