Frida Karlsson started the race strong and offensive. In the first interim, she led the winner Therese Johaug.
But towards the end she lost, and was in goal just over ten seconds after the third, Finnish Krista Parmakoski.
A fourth place for Frida Karlsson is the career best place in the World Cup.
- I'm four so it's a bit sour, but I feel it's close and there will be more races, says Frida Karlsson to SVT Sport.