Stadium: Court 3 Round: 25 Ground: Carpet indoor
| Challenger Almaty 2 | 2018/09/30 06:40 | Bogdan Bobrov v Karol Drzewiecki | 6-3,7-6 |
| Challenger Almaty 2 | 2018/09/29 06:10 | Amal Sultanbekov v Karol Drzewiecki | 6-4,3-6,3-6 |
| Challenger Szczecin | 2018/09/10 15:40 | Karol Drzewiecki v Gianluigi Quinzi | 3-6,4-6 |
| ITF Poland F8 | 2018/08/22 09:00 | Dimitar Kuzmanov v Karol Drzewiecki | 6-2,6-4 |
| ITF Poland F8 | 2018/08/20 09:30 | Karol Drzewiecki v Simonas Zukauskas | 4-6,6-3,6-4 |
| ITF Poland F8 | 2018/08/19 11:00 | Karol Drzewiecki v Tomasz Bednarek | 6-3,6-4 |
| 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 Germany F14 | 2018/10/04 12:40 | Petr Nouza v Marek Semjan | 6-7,6-0,4-6 |
| ITF Germany F14 | 2018/10/02 11:05 | Marek Semjan v Laurin Aerne | 6-3,6-3 |
| ITF Hungary F6 | 2018/08/23 14:00 | Marek Semjan v Cristian Rodriguez | 7-6,2-6,3-6 |
| ITF Hungary F6 | 2018/08/22 12:10 | Marek Semjan v Andrej Glvac | 6-2,6-1 |
| ITF Hungary F6 | 2018/08/20 09:00 | Marek Semjan v Samuel Puskar | 6-3,6-1 |
| ITF Hungary F6 | 2018/08/19 08:00 | Marek Semjan v Gabor-Janos Toth | 6-1,4-6,6-4 |
| ITF Serbia F2 | 2018/08/16 08:00 | Marek Semjan v Maksim Tikhomirov | 1-6,6-1,1-6 |
| ITF Serbia F2 | 2018/08/14 08:00 | Maximilian Gatev v Marek Semjan | 7-5,4-6,2-6 |