Round: 26 Ground: Hardcourt outdoor
| ITF Germany F15 | 2017/10/15 12:00 | Nico Mertens v Dominik Bartels | 6-3,3-6,3-6 |
| ITF France F23 Qual | 2017/10/07 15:50 | Nico Mertens v Louis Dussin | 1-6,6-3,3-6 |
| ITF France F21 | 2017/09/25 11:50 | Benjamin Hassan v Nico Mertens | 6-4,6-1 |
| ITF France F21 Qual | 2017/09/24 08:00 | Nico Mertens v Tim Van Der Horst | 4-6,6-1,6-4 |
| ITF Belgium F12 | 2017/09/08 11:00 | Marvin Netuschil v Nico Mertens | 6-2,6-4 |
| ITF Belgium F12 | 2017/09/06 11:10 | Nico Mertens v Niels Desein | 6-1,1-6,7-6 |
| ITF Belgium F12 | 2017/09/05 11:45 | Nico Mertens v Dimitriy Voronin | 6-3,7-6 |
| ITF Belgium F12 Qual | 2017/09/04 09:00 | Hunter Johnson v Nico Mertens | 3-6,2-6 |
| ITF Turkey F39 | 2017/10/16 07:15 | Felipe Meligeni Rodrigues Alves v Daniil Klimov | 4-6,6-3,6-4 |
| ITF Turkey F39 | 2017/10/15 07:00 | Vasil Yehorov v Daniil Klimov | 2-6,3-6 |
| ITF Turkey F39 | 2017/10/14 07:00 | Daniil Klimov v Sefa Suluoglu | 6-0,6-3 |
| ITF Ukraine F5 | 2017/09/06 11:15 | Vladyslav Orlov v Daniil Klimov | 7-6,6-4 |
| ITF Ukraine F5 | 2017/09/05 11:30 | Oleksandr Bielinskyi v Daniil Klimov | 4-6,7-6,4-6 |
| ITF Ukraine F5 | 2017/09/03 07:00 | Daniil Klimov v Sergiy Sergiienko | 6-4,6-4 |
| ITF Ukraine F4 | 2017/08/27 10:00 | Daniil Klimov v Yuriy Kryvoy | 3-6,6-1,3-6 |
| ITF Portugal F15 | 2017/08/05 11:00 | Antonio Cembellin Prieto v Daniil Klimov | 6-1,6-2 |