Stadium: CC Round: 54 Ground: Clay
| ITF M15 - Koszalin | 2019/08/09 08:00 | Ivan Nedelko v Piotr Matuszewski | 7-6,7-5 |
| ITF M15 - Koszalin | 2019/08/07 10:55 | Dominik Langmajer v Piotr Matuszewski | 0-6,1-6 |
| ITF M25 Porto | 2019/07/24 15:30 | Rayane Roumane v Piotr Matuszewski | 6-7,7-6,6-1 |
| ITF M25 Porto | 2019/07/23 09:00 | Piotr Matuszewski v Romain Bauvy | 6-2,6-3 |
| ITF M25 Porto | 2019/07/22 13:30 | Piotr Matuszewski v Eduardo LDR De Almeida | 6-2,6-3 |
| ITF M15 Irpin | 2019/05/27 10:00 | Vladyslav Gorodynskyi v Piotr Matuszewski | 2-6,7-6,15-13 |
| ITF M15 Irpin | 2019/05/27 06:30 | Demian Hulyanich v Piotr Matuszewski | 3-6,2-6 |
| ITF M15 Tbilisi | 2019/05/01 11:00 | Piotr Matuszewski v Peter Bothwell | 7-6,1-6,4-6 |
| ITF M15 - Koszalin | 2019/08/07 07:50 | Martins Podzus v Mikolaj Szmyrgala | 6-0,6-2 |
| ITF M15 - Koszalin | 2019/08/06 08:00 | Mikolaj Szmyrgala v Daniil Savelev | 6-1,6-1 |
| ITF M15 - Koszalin | 2019/08/05 08:00 | Ivan Zaytsev v Mikolaj Szmyrgala | 5-7,3-6 |
| ITF Poland F8 | 2018/08/18 11:00 | Michal Mikula v Mikolaj Szmyrgala | 6-2,6-0 |
| ITF Poland F7 | 2018/08/12 08:00 | Georgii Kravchenko v Mikolaj Szmyrgala | 6-4,6-0 |
| ITF Poland F7 | 2018/08/11 08:00 | Michal Bedra v Mikolaj Szmyrgala | 1-6,4-6 |
| ITF Poland F6 Qual | 2018/08/06 08:00 | Aitor Aramburu v Mikolaj Szmyrgala | 1-6,6-3,6-4 |
| ITF Poland F6 Qual | 2018/08/05 09:30 | Mikolaj Szmyrgala v Aleksander Sadal | 6-1,6-3 |