| ITF Slovakia F1 | 2017/07/27 12:15 | Ken Onishi v Tomas Liska | 6-2,6-1 |
| ITF Slovakia F1 | 2017/07/25 11:00 | Ken Onishi v Alessandro Ricci | 6-2,7-5 |
| ITF Austria F2 | 2017/07/10 11:00 | Ken Onishi v Jeremy Jahn | 3-6,6-7 |
| ITF Czech Republic F4 | 2017/07/05 10:30 | Jonathan Mridha v Ken Onishi | 6-2,6-1 |
| ITF Czech Republic F4 | 2017/07/04 09:35 | Ken Onishi v Michal Konecny | 3-6,6-4,7-5 |
| ITF Romania F4 | 2017/06/21 09:45 | Ken Onishi v Adrian Ungur | 2-6,0-6 |
| ITF Romania F3 | 2017/06/15 07:00 | Nicolae Frunza v Ken Onishi | 6-4,6-1 |
| ITF Romania F3 | 2017/06/14 07:00 | Riccardo Maiga v Ken Onishi | 7-6,1-6,2-6 |
| ITF Slovakia F1 | 2017/07/27 12:40 | Patrik Obal v Pavel Nejedly | 3-6,2-6 |
| ITF Slovakia F1 | 2017/07/26 09:00 | David Damian Brna v Pavel Nejedly | 4-6,2-6 |
| ITF Czech Republic F6 | 2017/07/17 11:25 | Pavel Nejedly v Alex Molcan | 6-3,3-6,4-6 |
| ITF Czech Republic F5 | 2017/07/11 08:30 | David Poljak v Pavel Nejedly | 6-1,3-6,6-4 |
| ITF Turkey F13 | 2017/04/05 07:30 | Wilson Leite v Pavel Nejedly | 7-5,6-3 |
| ITF Croatia F4 | 2017/03/29 12:30 | Davide Galoppini v Pavel Nejedly | 6-7,7-5,6-3 |
| Challenger Budapest Qual | 2017/02/04 11:00 | Pavel Nejedly v Evgeny Karlovskiy | 3-6,0-6 |
| ITF Germany F3 | 2017/01/24 12:15 | Yannick Hanfmann v Pavel Nejedly | 6-4,6-3 |