Stadium: Court 2 Round: 44 Ground: Hardcourt outdoor
| ITF Spain F25 | 2017/08/14 09:30 | Quim Sorni Chavarria v Dietrich Dernowski | 6-2,6-3 |
| ITF Spain F25 | 2017/08/13 10:00 | Nicolas Garcia Torrealba v Dietrich Dernowski | 4-6,3-6 |
| ITF Spain F23 Qual | 2017/07/22 09:15 | Daniil Klimov v Dietrich Dernowski | 6-3,6-1 |
| ITF Spain F22 Qual | 2017/07/17 09:35 | Alexander Knight v Dietrich Dernowski | 6-4,7-6 |
| ITF Spain F21 Qual | 2017/07/10 09:30 | Alejandro Garcia Saez v Dietrich Dernowski | 4-6,6-1,7-5 |
| ITF Spain F21 Qual | 2017/07/09 09:00 | Mikel Aranzabal v Dietrich Dernowski | 2-6,6-4,3-6 |
| ITF Spain F21 Qual | 2017/07/08 11:00 | Pol Martin Tiffon v Dietrich Dernowski | 6-2,4-6,5-7 |
| ITF Romania F5 | 2017/06/25 11:00 | David Pata v Dietrich Dernowski | 7-5,7-6 |
| ITF Russia F7 Qual | 2017/08/14 09:00 | Andrey Chepelev v Nikita Valentsev | 6-4,6-3 |
| ITF Russia F7 Qual | 2017/08/13 07:00 | Oleg Besednikov v Nikita Valentsev | 6-3,3-6,4-6 |
| ITF Russia F6 Qual | 2017/08/07 07:00 | Vladimir Korolev v Nikita Valentsev | 6-3,6-4 |
| ITF Russia F5 | 2017/08/01 08:40 | Nikita Valentsev v Dejan Katic | 1-6,3-6 |
| ITF Russia F4 | 2017/07/24 10:10 | Nikita Valentsev v Dejan Katic | 3-6,4-6 |
| ITF Russia F3 Qual | 2017/07/02 07:00 | Ivan Mikhaylyuk v Nikita Valentsev | 6-1,6-1 |
| ITF Russia F2 | 2017/06/26 11:35 | Yan Sabanin v Nikita Valentsev | 6-2,6-3 |
| ITF Turkey F19 | 2017/05/16 07:00 | Ivan Davydov v Nikita Valentsev | 6-3,6-4 |