Wadsim Zwetau won the bronze medal behind the Russian and Ukrainian teams in the mixed relay at the Junior Summer Biathlon World Championships 2006 in Ufa with Iryna Babezkaja , Nadseja Skardsina and Igor Matlachow . He finished eighth in the sprint and tenth in the pursuit. A year later he won again mixed relay bronze at the Junior Summer World Championships in Otepää with Babezkaja, Wera Kalbjanok and Wiktor Kulagin. A 13th place was added in the sprint, and fifth in the mass start. At the Summer Biathlon European Championships 2009 in Nové Město na Moravě Zwetau ran to 17th place in the sprint, in the mass start he was eleventh and fourth in the mixed relay race.