Born in Nestelbach bei Graz on June 13, 1943,[2] Wanz made his professional wrestling debut in 1968 in his native Austria.

On August 2, 1977 Wanz defeated Jan Wilkens on a show in Cape Town, South Africa to become the first holder of the CWA World Heavyweight Championship (originally claimed to be sanctioned by the fictitious Canadian Wrestling Association and having previous lineage in North America) bringing the championship back to Europe once the tour was over.

[2][4][5] Over the next two years Wanz defended the championship in Austria and Germany on several occasions, before losing to Don Leo Jonathan on September 1 in Johannesburg, South Africa.

[4][5] Wanz brought Jonathan to Graz, Austria to win the championship for a second time in front of a home town crowd.

[2][6][7] Returning to the IBV, which he and Peter Wilhelm bought out from Selenkowitsch and later rebranded as the Catch Wrestling Association (CWA) in honour of its World Heavyweight Championship, Wanz spent several years as the champion until March 22, 1987 where an American power house wrestler known as Bull Power defeated him for the championship.