Round: 26 Ground: Carpet indoor
| ITF Czech Republic F4 | 2017/07/04 11:15 | Jonathan Mridha v Antonin Stepanek | 6-0,6-1 |
| ITF Czech Republic F4 Qual | 2017/07/03 09:05 | Jonathan Mridha v David Damian Brna | 6-3,6-4 |
| ITF Czech Republic F4 Qual | 2017/07/02 09:00 | Jonathan Mridha v Stepan Holis | 6-0,6-3 |
| ITF Poland F1 | 2017/06/14 09:00 | Ricardo Hocevar v Jonathan Mridha | 6-4,6-4 |
| ITF Sweden F2 | 2017/05/19 08:30 | Yannick Vandenbulcke v Jonathan Mridha | 6-0,6-3 |
| ITF Sweden F2 | 2017/05/18 08:30 | Markus Eriksson v Jonathan Mridha | 3-6,6-2,4-6 |
| ITF Sweden F2 | 2017/05/17 08:15 | Jonathan Mridha v Jeremy Jahn | 1-6,7-6,7-6 |
| ITF Sweden F2 | 2017/05/15 10:10 | Jonathan Mridha v Christoffer Solberg | 6-3,7-6 |
| 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 Hungary F3 | 2017/05/24 09:30 | Ken Onishi v Gabor Borsos | 1-6,1-6 |
| ITF Hungary F2 | 2017/05/17 08:00 | Ken Onishi v Tomislav Jotovski | 6-4,2-6,4-6 |
| ITF Hungary F2 | 2017/05/16 09:25 | Michal Schmid v Ken Onishi | 6-2,4-6,4-6 |
| ITF Hungary F1 | 2017/05/11 11:40 | Attila Balazs v Ken Onishi | 6-2,6-2 |