Stadium: Court 5 Round: 54 Ground: Clay
| ITF Poland F8 | 2018/08/19 08:00 | Mikolaj Borkowski v Daniel Kossek | 6-4,6-2 |
| ITF M15 Antalya | 2019/05/20 07:45 | Daniil Gusev v Daniel Kossek | 6-4,6-1 |
| ITF M15 Antalya | 2019/05/13 07:45 | Daniel Kossek v Sergei Pogosian | 3-6,3-6 |
| ITF M15 Cancun | 2019/03/27 14:00 | Daniel Kossek v Lucas Gomez | 0-6,3-6 |
| ITF M15 Cancun | 2019/03/12 17:45 | Juan Pablo Varillas v Daniel Kossek | 6-1,6-0 |
| ITF M15 Sharm El Sheikh | 2019/02/20 08:00 | Filip Bergevi v Daniel Kossek | 6-2,6-2 |
| ITF M15 Sharm El Sheikh | 2019/02/13 08:00 | Filip Bergevi v Daniel Kossek | 6-0,6-0 |
| ITF M15 Sharm El Sheikh | 2019/02/04 07:30 | Daniel Kossek v Aaron Schmid | 3-6,4-6 |
| ITF South Africa F3 Qual | 2018/12/02 11:30 | Yaron Guberman v Daniel Kossek | 3-6,6-1,6-0 |
| ITF M15 Vilnius | 2019/07/08 07:00 | Tristan Meraut v Mikolaj Borkowski | 6-4,6-2 |
| ITF M15 Wroclaw | 2019/07/02 08:00 | Nikita Mashtakov v Mikolaj Borkowski | 6-2,7-5 |
| ITF M15 Wroclaw | 2019/07/01 08:00 | Mikolaj Borkowski v Samuel Puskar | 6-3,6-2 |
| ITF Poland F8 | 2018/08/20 08:00 | Vitalii Shcherba v Mikolaj Borkowski | 6-2,6-4 |
| ITF Poland F8 | 2018/08/19 08:00 | Mikolaj Borkowski v Daniel Kossek | 6-4,6-2 |
| ITF Poland F7 | 2018/08/13 10:20 | Piotr Grynkowski v Mikolaj Borkowski | 6-3,6-3 |
| ITF Poland F7 | 2018/08/12 11:00 | Mikolaj Borkowski v Dominik Langmajer | 7-5,6-4 |
| ITF Poland F6 Qual | 2018/08/06 09:50 | Mikolaj Borkowski v Mateusz Piatek | 1-6,1-6 |