| Challenger Poznan Qual | 2017/07/15 09:00 | Tomasz Bednarek v Karol Drzewiecki | 7-6,4-6,6-7 |
| ITF Poland F7 | 2018/08/14 14:35 | Karol Drzewiecki v Michal Mikula | 4-6,5-7 |
| ITF Poland F7 | 2018/08/13 08:00 | Karol Drzewiecki v Pawel Zawisza | 6-2,6-0 |
| ITF Poland F7 | 2018/08/12 11:00 | Karol Drzewiecki v Arvid Nordquist | 6-2,6-4 |
| Challenger Sopot Qual | 2018/07/28 09:00 | Karol Drzewiecki v Jonathan Mridha | 4-6,0-6 |
| ITF Germany F8 Qual | 2018/07/15 12:30 | Karol Drzewiecki v Tim Seibert | 5-7,2-6 |
| ITF Germany F8 Qual | 2018/07/15 08:30 | Karol Drzewiecki v Daniil Tsebrenko | 7-5,6-3 |
| ITF Germany F7 | 2018/07/11 11:25 | Dominik Boehler v Karol Drzewiecki | 6-2,6-1 |
| ITF Romania F2 Qual | 2018/05/28 07:30 | Karol Drzewiecki v Andrei Stefan Apostol | 2-6,4-6 |
| ITF Poland F8 | 2018/08/18 08:00 | Daniil Tsebrenko v Tomasz Bednarek | 1-6,6-4,4-6 |
| Challenger Lisbon Qual | 2018/05/12 09:00 | Tomasz Bednarek v Daniel Batista | 4-6,3-6 |
| Challenger Mouilleron Le Captif Qual | 2017/11/04 13:20 | Tomasz Bednarek v Maxime Janvier | 4-6,0-6 |
| Challenger Ismaning Qual | 2017/10/14 07:30 | Tomasz Bednarek v Matvey Khomentovskiy | 4-6,6-7 |
| Challenger Alphen Qual | 2017/09/03 09:00 | Tomasz Bednarek v Guillermo Olaso | 0-6,0-6 |
| Challenger Poznan Qual | 2017/07/15 09:00 | Tomasz Bednarek v Karol Drzewiecki | 7-6,4-6,6-7 |
| Challenger Milan Qual | 2017/06/24 10:00 | Filippo Baldi v Tomasz Bednarek | 7-5,6-2 |
| Challenger Todi Qual | 2017/06/17 09:20 | Tomasz Bednarek v Daniel Elahi Galan | 1-6,2-6 |