The Norwegian covered the distance in 2 hours 10 minutes 52.2 seconds.
The second place was taken by another representative of Norway, Emil Iversen, 0.7 seconds behind.
Russian Alexander Bolshunov finished third, 1.4 seconds back.
Alexey Chervotkin took 15th place, Ilya Semikov - 16th, Evgeny Belov - 20th
Earlier, Vyalbe spoke about the atmosphere in the Russian national team at the World Championships in Oberstdorf.