The men's skiathlon came to a dramatic end when the Russian star Alexander Bolshunov fell with just over a kilometer left.
Emil Iversen won four hundredths before Sjur Røthe.
Pål Golberg was third.
It was for a long time a large cluster in the 30 km long race where several skiers took turns to pull.
At 25 kilometers, there were still 12 skiers within five seconds.
It was a clear Norwegian character with five Norwegian skiers among the seven best.
And in the last kilometers, it was Norway that pulled away.
They also received help when Aleksander Bolshunov fell and dragged Norwegian Hans Christer Holund with him in the fall.
Burman best Swedish
Jens Burman, who was back after being pulled with back problems, made a strong effort and finished ninth.
Burman was forced to undergo back surgery and has not competed in the World Cup since March.
One who was missing in Lahti was the Norwegian star Johannes Kläbo who plans to return to the competitions in Falun next weekend.