| ITF Poland F6 Qual | 2016/08/20 12:00 | Mateusz Piatek v Daniel Kossek | 6-1,6-1 |
| ITF Poland F7 Qual | 2017/07/22 08:00 | Martins Rocens v Daniel Kossek | 6-1,6-2 |
| ITF Poland F5 Qual | 2017/07/08 07:00 | Daniel Kossek v Tomas Vaise | 5-7,4-6 |
| ITF Poland F4 Qual | 2017/07/01 11:00 | Daniel Kossek v Robin Thour | 4-6,6-7 |
| ITF Poland F3 | 2017/06/27 09:30 | Daniel Kossek v Evan Furness | 0-6,0-6 |
| ITF Indonesia F6 | 2017/04/09 04:00 | Daniel Kossek v Arief Rahman | 6-7,5-7 |
| ITF Indonesia F6 | 2017/04/08 04:20 | Daniel Kossek v Hansel Sanjaya | 6-2,6-1 |
| ITF Indonesia F5 Qual | 2017/04/03 03:50 | Daniel Kossek v Dominik Nazaruk | 2-6,3-6 |
| ITF Indonesia F4 Qual | 2017/03/25 08:00 | Daniel Kossek v Hsin Lin | 4-6,0-6 |
| ITF Poland F6 Qual | 2017/07/15 12:00 | Loick Bruandet v Mateusz Piatek | 6-4,6-3 |
| ITF Poland F5 Qual | 2017/07/09 14:00 | Patryk Krolik v Mateusz Piatek | 6-3,7-5 |
| ITF Poland F4 Qual | 2017/07/01 11:00 | Karol Drzewiecki v Mateusz Piatek | 2-6,6-2,7-6 |
| ITF Ukraine F5 | 2016/09/25 09:30 | Mateusz Piatek v Maksim Malyshev | 0-6,1-6 |
| ITF Ukraine F5 | 2016/09/24 07:00 | Mateusz Piatek v Oleg Kurbatov | 6-4,6-1 |
| ITF Ukraine F4 Qual | 2016/09/18 09:30 | Mateusz Piatek v Yurii Dzhavakian | 2-6,3-6 |
| ITF Poland F6 Qual | 2016/08/20 12:00 | Mateusz Piatek v Daniel Kossek | 6-1,6-1 |
| ITF Poland F5 Qual | 2016/08/16 08:00 | Mateusz Piatek v Viktor Kostin | 2-6,1-6 |