Helene Marie Fossesholm won the afternoon prologue and thus started with a lead of just over five seconds.
But she was chased by a bunch of top skiers.
Therese Johaug, Ragnhild Haga, Tiril Udnes Weng and Heidi Weng, among others, helped each other to catch up.
- I had a pack of wolves after me and I felt like a sheep that must not be eaten, says Fossesholm.
- I could never rest and I tried not to do that either.
It was very close that Fossesholm would not hold out, but she eventually won the 6.3 kilometer long race with half a second ahead of Tiril Udnes Weng.
Third came Ragnhild Haga.
Therese Johaug was not enough in the sprint and finished seventh.
- I am very impressed that she managed to keep her hatch, she says.