Round: 25 Ground: Clay
| Poznan, Poland | 2017/07/20 09:00 | Lukas Rosol v Dembek, Michal | 7-6,6-3 |
| Poznan, Poland | 2017/07/18 08:30 | Dembek, Michal v Reuter, Yannik | 6-4,6-2 |
| ITF Poland F5 | 2017/07/11 09:50 | Dembek, Michal v Smola, Maciej | 1-6,6-7 |
| Egypt F19, Singles Qualifying | 2017/07/05 17:55 | Dembek, Michal v Pervolarakis, Michail | 6-7,2-6 |
| Egypt F18, Singles Qualifying | 2017/06/28 16:00 | Dembek, Michal v Taweel, Issam Haitham | 4-6,6-7 |
| ITF Poland F2 | 2017/06/19 11:05 | Dembek, Michal v Orkin, Elliott | 7-6,2-6,5-7 |
| ITF Poland F2 | 2017/06/18 08:30 | Dembek, Michal v Kyrychenko, Oleksander | 6-2,6-4 |
| ITF Ukraine F3 | 2017/05/23 12:15 | Dembek, Michal v Dzhavakian, Yurii | 2-6,4-6 |
| ITF Poland F6 | 2017/07/20 09:00 | Kolisnyk, Olexiy v van Beem, Colin | 2-6,1-6 |
| ITF Poland F6 | 2017/07/19 08:00 | Kolisnyk, Olexiy v Frawley, James | 6-3,6-2 |
| ITF Poland F6 | 2017/07/17 12:15 | Kolisnyk, Olexiy v Kokulewski, Arnold | 6-2,6-4 |
| ITF Poland F5 | 2017/07/10 11:25 | Kolisnyk, Olexiy v Bensoussan, Samuel | 4-6,2-6 |
| ITF Poland F4 | 2017/07/03 11:10 | Maciej Rajski v Kolisnyk, Olexiy | 6-3,6-4 |
| ITF Poland F3 | 2017/06/27 11:25 | Kolisnyk, Olexiy v Antonio Massara | 5-7,4-6 |
| ITF Ukraine F3 | 2017/05/26 07:00 | Mylokostov, Denys v Kolisnyk, Olexiy | 6-2,3-6,6-3 |
| ITF Ukraine F3 | 2017/05/25 07:00 | Vernier, Michel v Kolisnyk, Olexiy | 1-6,7-6,4-6 |