Round: 62 Ground: Clay
| ITF Czech Republic F2 | 2017/05/26 10:30 | Piotr Matuszewski v Johannes Haerteis | 3-6,1-6 |
| ITF Czech Republic F2 | 2017/05/25 10:30 | Dominik Kellovsky v Piotr Matuszewski | 1-6,0-6 |
| ITF Czech Republic F2 | 2017/05/23 09:00 | Eduardo Dischinger v Piotr Matuszewski | 3-6,6-2,4-6 |
| ITF Czech Republic F1 Qual | 2017/05/13 10:30 | Piotr Matuszewski v Juraj Masar | 2-6,6-3,4-6 |
| Challenger Ostrava Qual | 2017/04/29 14:00 | Piotr Matuszewski v Carlos Taberner | 6-7,0-6 |
| ITF Egypt F12 | 2017/04/04 08:00 | Tomas Papik v Piotr Matuszewski | 7-6,6-7,6-0 |
| ITF Egypt F12 | 2017/04/03 08:00 | Piotr Matuszewski v Szymon Walkow | 6-4,6-4 |
| ITF Egypt F12 | 2017/04/02 08:00 | Piotr Matuszewski v Mateusz Smolicki | 6-2,3-6,6-1 |
| ITF Sweden F2 | 2017/05/16 09:35 | Karl Friberg v Jeremy Jahn | 5-7,2-6 |
| ITF Sweden F1 | 2017/05/11 08:15 | Jan Choinski v Karl Friberg | 4-6,6-1,6-4 |
| ITF Sweden F1 | 2017/05/10 08:15 | Karl Friberg v Lucas Renard | 6-2,6-4 |
| ITF Sweden F1 | 2017/05/08 10:30 | Fred Simonsson v Karl Friberg | 4-6,5-7 |
| ITF Croatia F3 | 2017/03/19 08:30 | Karl Friberg v Paul Woerner | 1-6,1-6 |
| ITF Croatia F3 | 2017/03/18 08:00 | Sergey Dorozhkin v Karl Friberg | 3-6,4-6 |
| ITF Sweden F5 | 2016/10/05 14:40 | Alexander Bublik v Karl Friberg | 6-3,1-6,6-3 |
| ITF Sweden F5 | 2016/10/04 12:00 | Christoffer Solberg v Karl Friberg | 4-6,6-2,6-7 |