Stadium: Court 1 Round: 44 Ground: Clay
| ITF Poland F6 Qual | 2018/08/04 08:00 | Juliusz Bienkiewicz v Jan Zielinski | 3-6,3-6 |
| Challenger Sopot Qual | 2018/07/30 15:15 | Dimitar Kuzmanov v Jan Zielinski | 6-0,6-1 |
| Challenger Sopot Qual | 2018/07/30 09:00 | Jan Zielinski v Cristian Rodriguez | 7-5,6-3 |
| Challenger Sopot Qual | 2018/07/28 12:05 | Yann Wojcik v Jan Zielinski | 2-6,6-2,3-6 |
| ITF Poland F3 Qual | 2017/06/25 08:00 | Dante Gennaro v Jan Zielinski | 6-3,6-1 |
| ITF Poland F2 | 2017/06/17 08:00 | Filip Bergevi v Jan Zielinski | 4-6,7-6,6-3 |
| ITF Poland F1 | 2017/06/12 13:45 | Jan Zielinski v Zdenek Kolar | 4-6,3-6 |
| ITF Estonia F1 | 2016/07/25 22:00 | Dmitry Mnushkin v Jan Zielinski | 4-6,7-6,7-5 |
| Challenger Poznan Qual | 2018/06/03 12:25 | Lukas Rosol v Norbert Tadyszak | 6-3,6-2 |
| ITF Poland F4 | 2018/05/21 11:00 | David Pichler v Norbert Tadyszak | 6-1,6-1 |
| ITF Poland F4 | 2018/05/21 07:00 | Norbert Tadyszak v Aliaksandr Prudnikau | 6-2,6-4 |
| ITF Poland F4 | 2018/05/20 07:00 | Norbert Tadyszak v Adam Bronka | 6-2,5-7,6-4 |
| ITF Poland F3 Qual | 2018/05/14 07:30 | Marco Neubau v Norbert Tadyszak | 5-7,6-3,6-1 |
| ITF Poland F2 | 2018/05/05 10:00 | Janis Podzus v Norbert Tadyszak | 6-1,6-1 |
| ITF Poland F1 | 2018/04/28 07:00 | Norbert Tadyszak v Jakob Aichhorn | 0-6,6-7 |
| ITF Poland F10 Qual | 2017/08/19 08:00 | Norbert Tadyszak v Michal Bedra | 2-6,4-6 |