Frida Karlsson dominated the Olympic women's cross country skiing skiathlon on Saturday for arguably her biggest career success in a Swedish one-two finish.

Karlsson skied away from team-mate Ebba Andersson with less than seven kilometres left and had plenty of time on the home straight to grab a Swedish flag.

Karlsson won by 51 seconds from reigning world champion Andersson, with Norway's Heidi Weng getting the bronze, 1:26.7 minutes adrift.

"This is a once-in-a-lifetime moment," Karlsson said. ”It feels completely incredible. In the home straight, I kind of understood that I would win. It feels so nice to do it this way, with the team.”

In the skiathlon over 20 kilometres, athletes ski the first half in classic style and the second in freestyle after a quick pit stop to change skis and poles.

Karlsson has been among the elite for many years with 14 World Cup victories to her name.

Her first major individual title finally came at last year's worlds in the 50km, after two relay golds and nine individual silver and bronze medals. At the Olympics, she had a relay bronze before her biggest moment on Saturday.

Off the slopes, Karlsson was the target of a stalker between October 2023 and February 2025. The elderly offender was handed a suspended prison sentence and fined last March by a Swedish court. She told the court she had not felt safe at home or anywhere else.