Career
In 1937, Bergendahl earned golds in the 18 km cross country event and 4 x 10 km relay. In 1938, he earned a silver in the 4 x 10 km relay and a bronze in the 50 km Cross country event. Bergendahl fought in the Norwegian Campaign following the German invasion of Norway in 1940.
Together with other sportsmen Bergendahl served in the improvised ski unit Sørkedalen Company (Norwegian: Sørkedalen kompani) in April 1940.