Nadyrshina, who at 17 is already the world champion in women's parallel slalom snowboarding, added the junior gold medal to her trophy cabinet, having earned the parallel giant slalom title 24 hours beforehand.

Maria Volgina was second in a Russian one-two and Swiss snowboarder Flurina Neva Baetschi took the bronze medal.

Russian athletes were even more dominant in the men's event with the top six all haling from the host nation. 

Martynov pipped Iaroslav Stepanko - who had won the parallel giant slalom title - to earn a first gold medal of the FIS World Junior Championships, with Vladimir Pnev third.

Ski cross titles were also on the line and Melchakova earned the women's gold medal in a final featuring two Russian athletes.

Compatriot Polina Ryabova came third, with Czech Diana Cholenska sandwiched between the pair.

Oliver Vierthaler was the day's lone non-Russian champion, collecting the men's ski cross title.

Simone Deromedis of Italy was second and Vladimir Shmyrov, a Russian, third.

Team ski cross and Alpine snowboard events are scheduled tomorrow on the final day of the FIS World Junior Championships.