After illness, Ebba Andersson made a comeback in the World Cup last Friday.
Then there was a win in 10km free.
It was followed up with an unsuccessful sprint qualifying on Saturday, which she said "felt like crap".
But on the longer distances, Ebba Andersson is sharper.
Which she showed at Sunday's mass start.
At 4.8 kilometers a quintet with Kerttu Niskanen and Ebba Andersson in the lead had separated from the rest of the field.
Barely a handful of kilometers later, Niskanen and Andersson had switched gears and constituted the lead itself, with 20 seconds down after 10 kilometers.
Both Emma Ribom and Jonna Sundling caught up in a chasing group behind and were sixth and seventh with half the race completed.
Jerked away from Niskanen
Although they were closely followed for a long time, Ebba Andersson pulled away from Niskanen at the 13 kilometer measurement.
So with just over five kilometers to go, the Swede had a gap of over ten seconds after gaining a lot of time on the uphills.
At 17.2 kilometers, Niskanen was almost 20 seconds behind Andersson.
The distance only grew all the way to the finish and Ebba Andersson won clearly and took her fourth World Cup victory in her career.
Niskanen was second, 22 seconds behind Andersson, and a good distance behind the Norwegian Astrid Öyres Slind tied for third place with Ingvild Flugstad Östberg, where the former was fastest and took his first podium in the World Cup.
Emma Ribom and Jonna Sundling stood for fine distance races and came fifth and sixth respectively.
The article is updated.