Willi Müller is a Swiss

Switzerland

Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

 orienteering

Orienteering

Orienteering is a family of sports that requires navigational skills using a map and compass to navigate from point to point in diverse and usually unfamiliar terrain, and normally moving at speed. Participants are given a topographical map, usually a specially prepared orienteering map, which they...

 competitor

Competition

Competition is a contest between individuals, groups, animals, etc. for territory, a niche, or a location of resources. It arises whenever two and only two strive for a goal which cannot be shared. Competition occurs naturally between living organisms which co-exist in the same environment. For...

 who participated in five World Orienteering Championships

World Orienteering Championships

The World Orienteering Championships were first held in 1966. They were held biennially up to 2003 . Since 2003, competitions have been held annually....

 in the 1970s and 1980s. He competed at the 1978 World Championships in Kongsberg

Kongsberg

is a town and municipality in Buskerud county, Norway. It is located at the southern end of the traditional region of Numedal. The administrative centre of the municipality is the town of Kongsberg....

, where he placed 16th in the individual course and fourth in the relay with the Swiss team. At the 1979 World Championships in Tampere

Tampere

Tampere is a city in southern Finland. It is the most populous inland city in any of the Nordic countries. The city has a population of , growing to approximately 300,000 people in the conurbation and over 340,000 in the metropolitan area. Tampere is the third most-populous municipality in...

 he placed 18th individually and again fourth in the relay. He competed on the Swiss relay team at the World Championships in Thun

Thun

Thun is a municipality in the administrative district of Thun in the canton of Bern in Switzerland with about 42,136 inhabitants , as of 1 January 2006....

 in 1981, where the team placed fifth. At the 1983 World Championships in Zalaegerszeg

Zalaegerszeg

In 2001 Zalaegerszeg had 61,654 inhabitants . The distribution of religions were, 71.1% Roman Catholic, 3.8% Calvinist, 1.6% Lutheran, 11.6% Atheist .-Notable people:* Lajos Botfy , mayor...

 he placed tenth in the individual contest, and fourth in the relay. At the 1985 World Championships in Bendigo he participated on the Swiss team which won the bronze medal.