Round: 26 Ground: Carpet indoor
| ITF Czech Republic F4 | 2017/07/04 08:00 | Statzberger, Thomas v Hernych, Jan | 2-6,4-6 |
| Czech Extraliga, Men | 2016/12/19 09:00 | Hernych, Jan v Papik, Tomas | 5-7,3-6 |
| Czech Extraliga, Men | 2016/12/17 09:30 | Hernych, Jan v Mektic, Nikola | 6-0,6-4 |
| ITF Czech Republic F12 | 2016/12/08 10:00 | Niels Lootsma v Hernych, Jan | 2-6,6-3,7-5 |
| ITF Czech Republic F12 | 2016/12/06 12:30 | Paroulek, Tadeas v Hernych, Jan | 2-6,2-6 |
| ITF Czech Republic F7 | 2016/10/14 08:00 | David Pichler v Hernych, Jan | 6-3,1-6,7-6 |
| ITF Czech Republic F7 | 2016/10/12 08:00 | Motl, Pavel v Hernych, Jan | 6-7,3-6 |
| ITF Czech Republic F7 Qual | 2016/10/11 08:00 | Hernych, Jan v Marko, Michal | 6-3,6-4 |
| ITF Czech Republic F4 | 2017/07/04 08:00 | Hirschmueller, Christian v Krstev, Ondrej | 3-6,6-7 |
| ITF Czech Republic F4 Qual | 2017/07/03 10:00 | Krstev, Ondrej v Jonhagen, Johan | 6-4,6-3 |
| ITF Czech Republic F4 Qual | 2017/07/02 09:00 | Krstev, Ondrej v Kozielski, Lukasz | 6-1,6-0 |
| Czech Republic F2, Singles | 2017/05/24 10:55 | Filip Duda v Krstev, Ondrej | 3-6,6-2,6-0 |
| ITF Czech Republic F1 | 2017/05/17 08:30 | David Poljak v Krstev, Ondrej | 6-1,7-5 |
| ITF Czech Republic F1 Qual | 2017/05/15 09:20 | Krstev, Ondrej v Paroulek, Tadeas | 7-5,2-6,7-5 |
| ITF Czech Republic F1 Qual | 2017/05/14 09:00 | Krstev, Ondrej v Glvac, Andrej | 5-7,6-4,6-4 |
| ITF Czech Republic F1 Qual | 2017/05/13 09:00 | Krstev, Ondrej v Suc, Dominik | 6-4,6-3 |