[1] He is the brother of Olympic snowboarder Natalia Soboleva, who is the silver medalist of the 2019 World Championships.

He was the top qualifier in the parallel giant slalom, but in the 1/8 finals, he lost to Austria's Andreas Prommegger, finishing 9th overall.

He then failed to qualify for the elimination round in the parallel slalom, finishing 27th.

[1] Sobolev made his World Cup debut in February 2007.

As of September 2014, he has one podium finish, silver in parallel slalom at Jauerling in 2011–12.