Stadium: Centre Court Round: 28 Ground: Clay
| Challenger Poznan MD | 2018/06/07 13:30 | Laaksonen/Panfil v Kowalczyk/Walkow | 5-7,6-3,8-10 |
| Challenger Poznan MD | 2018/06/06 16:00 | Kowalczyk/Walkow v Daniel/Zapata Miralles | 7-6,6-1 |
| ITF Czech Republic F8 MD | 2017/11/05 09:30 | Drzewiecki/Smola v Kowalczyk/Walkow | 7-6,6-7,10-8 |
| ITF Czech Republic F8 MD | 2017/11/04 12:00 | Jaloviec/Michnev v Kowalczyk/Walkow | 4-6,4-6 |
| ITF Czech Republic F8 MD | 2017/11/02 15:00 | Hajek/Konecny v Kowalczyk/Walkow | 4-6,6-7 |
| ITF Czech Republic F7 MD | 2017/10/28 13:30 | Kowalczyk/Walkow v Lootsma/Poljak | 6-2,4-6,6-10 |
| ITF Czech Republic F7 MD | 2017/10/28 10:00 | Kowalczyk/Walkow v Gengel/Papik | 6-4,5-7,10-3 |
| ITF Czech Republic F7 MD | 2017/10/27 11:25 | Kowalczyk/Walkow v Bolardt/Vrbensky | 6-2,6-4 |
| Challenger Poznan MD | 2018/06/07 15:20 | Dembek/Zielinski v Estrella Burgos/Quiroz | 6-4,6-3 |
| ITF Estonia F1 MD | 2016/07/28 22:00 | Polyakov/Tyurnev v Dembek/Zielinski | 5-7,5-7 |
| ITF Estonia F1 MD | 2016/07/27 22:00 | Dembek/Zielinski v Garcia-Roman/Lombe | 6-2,6-3 |
| ITF Lithuania F1 MD | 2016/07/22 13:55 | Grigelis/Mugevicius v Dembek/Zielinski | 7-5,6-4 |
| ITF Lithuania F1 MD | 2016/07/21 12:35 | Dembek/Zielinski v Babelis/Zemaitelis | 6-7,6-3,10-8 |
| ITF Poland F3 MD | 2016/06/09 13:40 | Kapas/Majchrowicz v Dembek/Zielinski | 6-3,7-6 |
| ITF Egypt F9 MD | 2015/11/27 14:30 | Dembek/Zielinski v Drzewiecki/Smola | 5-7,3-6 |