Before retiring as an alpine skier, Kraus had already taken up ski cross.

In the 2004–05 season he competed in six World Cup races, winning three of them; in Les Contamines, Pozza di Fassa and Kreischberg.

At the end of the season he won the gold medal at the 2005 World Championships in Ruka.

[2] Kraus represents the sports club USK Praha.

This biographical article relating to freestyle skiing in the Czech Republic is a stub.