In her youth, Berntsen was a skiing sport called telemark skiing . At the Telemark World Championships in 1997 she won the gold medal in the Classic discipline .
At the Alpine Ski World Cup Berntsen took the first time in the 1999/2000 season in part. There she started almost exclusively in the slalom, but was only able to achieve top results occasionally. It was placed eight times in the top ten. The best placings were four fifth places, which she achieved between January and November 2001. In the same year she also achieved the best placement of her career in the overall ranking of the Ski World Cup with 28th place.
Due to persistent failure, Berntsen switched to the ski cross discipline . In February 2007 she started in the Freestyle Skiing World Cup for the first time . At the Freestyle World Championships 2007 in Madonna di Campiglio , she reached tenth place. In her third World Cup race in January 2008, she achieved her first podium with second place in ski cross. She won her first race on January 10, 2009 in Les Contamines .
On February 23, 2010, Berntsen won the silver medal in ski cross at the Olympic Games , behind the Canadian Ashleigh McIvor and ahead of the French Marion Josserand . This success came as a bit of a surprise because she had never been better 19th in the current World Cup season. Berntsen won the silver medal at the Winter X Games in 2006 and 2012. At the end of 2013, she retired from top-class sport.
Norway
