Round: 62 Ground: Clay
| ITF Poland F3 Qual | 2017/06/26 10:00 | Oleg Prihodko v Drzewiecki, Karol | 6-3,4-6,6-1 |
| ITF Poland F1 | 2017/06/10 08:00 | Frost, Linus v Drzewiecki, Karol | 6-1,6-0 |
| ITF Czech Republic F3 Qual | 2017/05/27 10:00 | Styler, Ondrej v Drzewiecki, Karol | 6-1,6-4 |
| Egypt F12, Singles Qualifying | 2017/04/02 08:00 | Drzewiecki, Karol v Kacper Zuk | 6-7,6-3,2-6 |
| Egypt F12, Singles Qualifying | 2017/04/01 08:00 | Drzewiecki, Karol v Lechevretel, Louis | 6-4,6-4 |
| Challenger Wroclaw Qual | 2017/02/26 10:00 | Drzewiecki, Karol v Moraing, Mats | 6-7,4-6 |
| ITF Indonesia F6 | 2016/12/15 03:30 | Sidharth Rawat v Drzewiecki, Karol | 6-4,6-4 |
| ITF Indonesia F6 | 2016/12/13 09:15 | Drzewiecki, Karol v Tagashira, Kento | 6-0,6-4 |
| ITF Ukraine F5 | 2016/09/25 09:30 | Piatek, Mateusz v Malyshev, Maksim | 0-6,1-6 |
| ITF Ukraine F5 | 2016/09/24 07:00 | Piatek, Mateusz v Kurbatov, Oleg | 6-4,6-1 |
| ITF Ukraine F4 Qual | 2016/09/18 09:30 | Piatek, Mateusz v Dzhavakian, Yurii | 2-6,3-6 |
| ITF Poland F6 Qual | 2016/08/20 12:00 | Piatek, Mateusz v Kossek, Daniel | 6-1,6-1 |
| ITF Poland F5 Qual | 2016/08/16 08:00 | Piatek, Mateusz v Kostin, Viktor | 2-6,1-6 |
| ITF Poland F5 Qual | 2016/08/15 08:00 | Vodavoz, Nir v Piatek, Mateusz | 6-3,3-6,1-6 |