2016 Spanish Junior and Cadet Open | ITTF rankings: Siwiec Matej 490, Valenta Jan 667 |
2015 Croatia Junior and Cadet Open | ITTF rankings: Siwiec Matej 445, Valenta Jan 575 |
2015 Polish Junior and Cadet Open | ITTF rankings: Siwiec Matej 404, Valenta Jan 545 |
2015 French Junior and Cadet Open | ITTF rankings: Siwiec Matej 428, Valenta Jan 545 |
2015 Belgium Junior and Cadet Open | ITTF rankings: Siwiec Matej 428, Valenta Jan 545 |
2014 Hungarian Junior and Cadet Open | ITTF rankings: Siwiec Matej 389, Valenta Jan 327 |
2014 Slovak Cadet Open | ITTF rankings: Siwiec Matej 389, Valenta Jan 327 |