Career
He switched his citizenship from Sweden to the United States in 2009 in order to be able to compete as an American at the 2010 Olympics. Walden retired from competition after the 2010-2011 season. Subsequently he was appointed as coach of the Norwegian national luge team
Olympics:
He finished 23rd in the men"s singles event at the 2002 Winter Olympics in Salt Lake City competing for Sweden.
He competed at the 2010 Winter Olympics for the United States, finishing 15th. FIL World Luge Championships:
Walden has competed twice for the United States in the World Luge Championships, as well as once for the Swedish team
In 2007, he placed 13th, competing for Sweden. Competing for the United States, he placed 12th in 2008, and sixth in 2009.