Norwegian cross-country skier who won her first Olympic gold medal in Vancouver in 2010. She later earned four medals, including two gold, at the 2013 FIS Nordic World Ski Championships.
She began competing in local Norwegian races in 2006.
She became the first Norwegian woman to win the Tour de Ski, doing so in 2013-14.
She has siblings named Karstein, Joakim and Veronica.
She and fellow Norwegian Marit Bjorgen are both World Champions in women's 10-kilometer cross-country skiing.