The Norwegian led by two minutes and three seconds over compatriot Heidi Weng going into today's concluding race, a 15 kilometre classic pursuit in Trondheim.

With her rivals hunting her down, Johaug duly put more distance between herself and the pack and won the race in 41min 13.8sec.

Her margin of victory was extended to 3:40.8 as she finished in an total time of 3:00:41.8, with Weng ending sixth on the day and second overall.

Another Norwegian, Ingvild Flugstad Østberg, had started the day one second behind Weng and was 3:41.5 adrift of Johaug in the final standings.

She finished fifth on the day.

The Ski Tour combined times from the last six World Cup stops, with three in Sweden and three in Norway.

Johaug won five of the races which also still counted towards the overall World Cup standings.

The 10-time world champion has extended her lead in those rankings as she aims to win the seasonal title for the third time.

She boats 2,268 points and has a massive 657-point lead over Weng, with only a maximum of 800 points remaining.

Norway's Astrid Uhrenholdt Jacobsen was second in the pursuit behind Johaug today, clocking 41:58.6.

Finland's Krista Pärmäkoski ended third in 42:18.2.

Johaug, who boasts an Olympic medal of each colour, has already won the Tour de Ski and Nordic Opening titles this season.

However, she missed the Pyeongchang 2018 Winter Olympics after serving a drugs ban.

"I felt really good today," said Johaug.

"The waxers have done a really good job on the whole Ski Tour and today I had perfect skis.

"When the skis are this good I can just go out there and enjoy all the people who have come here to cheer us."

The men's Ski Tour was won by Norway's Pål Golberg after the concluding 30km classic pursuit.

Golberg started the day 34 seconds behind Russian leader Alexander Bolshunov in second place, but did enough to overhaul him.

He finished seventh to clock an overall time of 3:52:41.6, with Bolshunov ending in 23rd and tumbling down to seventh overall.

"It's surreal and something I did not expect before the season and before the Ski Tour," said Golberg. 

"The crowd started to congratulate me on the third round and I was like 'it's still a long way to the finish', so I really had to stay focused but I managed to do that."

Two other Norwegians completed the Ski Tour podium, with Simen Hegstad Krüger coming home 28.9 behind Golberg and Hans Christer Holund ending 30.1 adrift.

On the day, Emil Iversen won the race for Norway in a time of 1:21:25.9.

Iivo Niskanen of Finland was second in 1:21:36.8 and Holund was third in 1:22:03.7.

Bolshunov still leads the overall World Cup standings with 1,948 points.

Norway's triple Olympic champion and defending World Cup winner Johannes Høsflot Klæbo is second on 1,531 and Golberg is third on 1,202.

The World Cup season will now resume in Lahti in Finland on Saturday (February 29).