| ITF Greece F4 | 04/11 08:50 | 62 | Drzewiecki, Karol v Perret, Loic | 3-6,6-2,7-6 | |
| ITF Greece F4 | 04/10 08:30 | 62 | Drzewiecki, Karol v Binding, Jonathan | 6-2,1-6,6-3 | |
| ITF Greece F4 | 04/09 07:00 | 62 | Drzewiecki, Karol v Jakob, Florian | 6-0,6-2 | |
| ITF Egypt F11 | 03/31 08:00 | 26 | Drzewiecki, Karol v Alekseenko, Vadim | 1-6,6-3,4-6 | |
| ITF Egypt F11 | 03/29 08:00 | 25 | Drzewiecki, Karol v Robert, Quentin | 7-6,6-3 | |
| ITF Egypt F10 | 03/23 08:00 | 25 | Karim-Mohamed Maamoun v Drzewiecki, Karol | 6-2,6-3 | |
| Challenger Wroclaw Qual | 02/13 17:10 | 45 | Drzewiecki, Karol v Tepavac, Marko | 2-6,4-6 | |
| ITF Egypt F33 | 12/02 15:05 | 25 | Drzewiecki, Karol v Dzhavakian, Yurii | 6-2,6-3 | |
| ITF Egypt F33 | 11/27 12:30 | 27 | Aldin Setkic v Drzewiecki, Karol | 6-1,6-2 | |
| ITF Egypt F33 | 11/26 13:50 | 26 | Klegou, Alexis v Drzewiecki, Karol | 4-6,3-6 | |
| ITF Egypt F33 | 11/25 12:30 | 25 | Vladyslav Orlov v Drzewiecki, Karol | 5-7,6-7 | |
| ITF Egypt F33 | 11/19 15:00 | 26 | Drzewiecki, Karol v Santiago Rodriguez Taverna | 3-6,7-5,4-6 | |
| ITF Egypt F33 | 11/17 12:30 | 25 | Drzewiecki, Karol v Marek Jaloviec | 5-7,6-4,6-4 | |
| ITF Egypt F33 | 10/22 16:45 | 26 | Drzewiecki, Karol v Merckx, Jonas | 3-6,6-7 | |
| ITF Egypt F33 | 10/14 15:45 | 25 | Sillanpaa, Henrik v Drzewiecki, Karol | 6-4,5-7,6-4 | |
| ITF Egypt F33 | 10/07 14:00 | 25 | Jedruszczak, Mikolaj v Drzewiecki, Karol | 6-4,3-6,6-3 | |
| Challenger Szczecin Qual | 09/13 11:45 | 54 | Smirnov, Artem v Drzewiecki, Karol | 7-6,6-4 | |
| ITF Poland F5 | 09/10 08:00 | 27 | Zieba, Konrad v Drzewiecki, Karol | 7-6,6-0 | |
| ITF Poland F5 | 09/08 11:20 | 25 | Drzewiecki, Karol v Khomich, Aleksei | 6-2,7-5 | |
| ITF Poland F4 | 09/02 08:50 | 26 | Drzewiecki, Karol v Eriksson, Markus | 5-7,1-6 | |
| ITF Poland F4 | 09/01 08:00 | 25 | Drzewiecki, Karol v Zbroja, Piotr | 6-2,6-4 | |
| ITF Poland F2 | 08/20 08:00 | 26 | Drzewiecki, Karol v Gianluca Mager | 2-6,6-4,2-6 | |
| ITF Poland F2 | 08/18 11:40 | 25 | Drzewiecki, Karol v Santanna, B. | 0-6,6-3,7-6 | |
| ITF Poland F1 | 08/12 09:00 | 26 | Zdenek Kolar v Drzewiecki, Karol | 7-6,6-2 | |
| ITF Poland F1 | 08/10 08:00 | 25 | Drzewiecki, Karol v Andrzejczuk, Adrian | 3-6,7-5,6-1 | |
| ITF Slovakia F3 | 07/30 08:00 | 26 | Ignatik, Uladzimir v Drzewiecki, Karol | 6-0,6-2 | |
| ITF Slovakia F2 | 07/22 08:00 | - | Gawron, Marcin v Drzewiecki, Karol | 6-4,6-1 | |
| ITF Georgia F2 | 06/08 08:15 | - | Drzewiecki, Karol v Kylar, Kevin | 3-6,1-6 | |
| ITF Georgia F2 | 06/05 09:25 | - | Aleksandre Metreveli v Drzewiecki, Karol | 6-0,6-0 | |
| ITF Georgia F2 | 06/04 11:15 | - | Drzewiecki, Karol v Wagner, Bastian | 6-1,6-3 |