[1] His brother, János Vas, is also a professional ice hockey player and member of the Hungarian national team.

Vas, who is Jewish,[2] made his senior debut at the age of 15 for his hometown club Dunaferr SE and a year later already celebrated his first Hungarian championship success.

Vas started the next season by Canadian club Hawkesbury Hawks, with them he again went triumphant, winning the Central Canada Hockey League, however, failed to progress to the national final after finishing only second in the Fred Page Cup.

He spent six years in Hungary, interrupted by two short spells in Swedish lower league clubs Vänersborgs HC and Grums IK.

[3] In 2006 he moved abroad again and joined previous year's French Cup winners Diables Rouges de Briançon, where he played together with fellow Hungarians Balázs Ladányi and Viktor Szélig.