The Czech Republic qualified one player based on the Badminton Junior World Rankings.

[2] The Czech Republic qualified a girls' team based on the U18 3x3 national federation ranking.

The Czech Republic qualified a boys' team based on their performance at 2017-18 European Youth Continental Cup Final.

[8] The Czech Republic qualified one boat based on its performance at the 2017 World Junior Rowing Championships.

The Czech Republic later qualified a single sculls boat based on its performance at the 2018 European Rowing Junior Championships.