The 26-year-old skier from Tver covered the distance in 29 minutes 51.3 seconds.
Silver medal went to Heidi Veng (+3.7 seconds) from Norway.
Bronze went to Kriste Pärmäkoski (+4.8) from Finland.
The men's mass start will take place on December 3 in Val di Fiemme.
The race starts at 16:50 Moscow time.
Earlier, Anfisa Reztsova called Johannes Klebo a rare lover of sniffing.