| ITF Latvia F1 | 2017/07/29 09:00 | Denis Klok v Mikus Losbergs | 3-6,7-6,7-5 |
| ITF Estonia F1 | 2017/07/26 15:00 | Jurgen Zopp v Denis Klok | 6-2,6-1 |
| ITF Estonia F1 | 2017/07/25 11:00 | Denis Klok v Kristjan Tamm | 6-3,6-3 |
| ITF Russia F2 | 2017/06/29 09:50 | Denis Klok v Richard Muzaev | 2-6,2-6 |
| ITF Russia F2 | 2017/06/28 08:00 | Mikalai Haliak v Denis Klok | 2-6,4-6 |
| ITF Russia F1 Qual | 2017/06/18 07:00 | Denis Klok v Nikolay Vylegzhanin | 6-4,4-6,3-6 |
| ITF Hungary F3 | 2017/05/23 09:25 | Denis Klok v Milos Nikolic | 2-6,2-6 |
| ITF Hungary F2 | 2017/05/16 14:00 | Zsombor Piros v Denis Klok | 6-2,6-4 |