Johannes Høsflot Klæbo triumphed in exactly 26 minutes in the final 10 kilometre classic race of the men's cross-country skiing World Cup season to boost his late bid for a fifth overall title.
It was a sixth straight race win on Saturday and third straight distance win for the Norwegian, as well as 83rd overall as he made a late charge for a third overall title in a row.
Klæbo won by 22.1 seconds from Finn Iivo Niskanen. Klæbo's overall World Cup rival, Harald Østberg Amundsen, came home eighth - setting up an epic 20km mass start in Sunday as the season concludes.
A victory is worth 100 points and there are also still bonus points to be picked up. Amundsen is mainly in the title running by virtue of his Tour de Ski title in January, an event Klæbo missed due to illness.
Finland's Kerttu Niskanen, Iivo's sister, won the women's race but American Jessica Diggins extended her overall lead.
Niskanen set 30:01.03 in a wet and foggy Sweden for an eighth World Cup win, beating compatriot Johanna Matintalo by 4.2 seconds.
Sweden's Jonna Sundling was third and Diggins fifth as she closes in on her second World Cup title with just Sunday's 20km freestyle mass start left.
Sweden's Linn Svahn could only finish 18th and is now 75 points behind Diggins.
The first World Cup ski-flying event for female ski jumpers was cancelled on Saturday due to bad weather.
The Raw Air competition in Vikersund, Norway, could not take place as planned due to strong winds and precipitation, governing body the FIS announced. There were 17 athletes on the start list.
The jumpers, who have been campaigning for years to jump from the monster hills like the men, understood the decision.
"The conditions are really windy. It's not possible to organize any ski flying today. That's why we'll pack up, recover well and go again tomorrow," said Austria's Eva Pinkelnig. Another World Cup competition is scheduled for Sunday.
The men are due to jump in Vikersund later on Saturday and it remains to be seen if that will be possible.
The women were allowed to try out ski flying in Vikersund last year but there were no World Cup points back then. Jumpers can fly over 200 metres in ski flying, thanks to much larger hills than normal ski jumping.
In other Nordic skiing action on Saturday, the mixed team event at the Nordic combined World Cup finals in Trondheim, Norway is taking place.
