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