Stadium: Court 2 Round: 25 Ground: Clay
| ITF Poland F7 | 2018/08/13 08:00 | Drzewiecki, Karol v Zawisza, Pawel | 6-2,6-0 |
| ITF Poland F7 | 2018/08/12 11:00 | Drzewiecki, Karol v Arvid Nordquist | 6-2,6-4 |
| Challenger Sopot Qual | 2018/07/28 09:00 | Drzewiecki, Karol v Jonathan Mridha | 4-6,0-6 |
| ITF Germany F8 Qual | 2018/07/15 12:30 | Drzewiecki, Karol v Seibert, Tim | 5-7,2-6 |
| ITF Germany F8 Qual | 2018/07/15 08:30 | Drzewiecki, Karol v Tsebrenko, Daniil | 7-5,6-3 |
| ITF Germany F7 | 2018/07/11 11:25 | Boehler, Dominik v Drzewiecki, Karol | 6-2,6-1 |
| ITF Romania F2 Qual | 2018/05/28 07:30 | Drzewiecki, Karol v Apostol, Andrei Stefan | 2-6,4-6 |
| ITF Poland F3 | 2018/05/15 09:30 | Bangoura, Sekou v Drzewiecki, Karol | 3-6,7-6,6-1 |
| ITF Poland F7 | 2018/08/12 08:00 | Mikula, Michal v Steinberger, Max | 6-4,6-2 |
| ITF Poland F7 | 2018/08/11 08:00 | Andrzejczak, Bartlomiej v Mikula, Michal | 4-6,1-6 |
| ITF Poland F6 | 2018/08/07 09:50 | Pawel Juszczak v Mikula, Michal | 6-2,6-1 |
| ITF Poland F4 | 2018/05/21 09:00 | Semjan, Marek v Mikula, Michal | 7-5,6-3 |
| ITF Poland F3 | 2018/05/15 07:30 | Netuschil, Marvin v Mikula, Michal | 6-1,7-5 |
| ITF Poland F3 Qual | 2018/05/14 07:30 | Mikula, Michal v Labna, Ramy | 7-6,6-3 |
| ITF Poland F3 | 2018/05/13 07:00 | Mikula, Michal v Vesanen, Ilari | 6-1,6-1 |
| ITF Poland F6 Qual | 2017/07/17 11:30 | Mikula, Michal v Nazaruk, Dominik | 7-5,4-6,4-6 |