The game, which took place on the ice of the Shayba Olympic Arena, ended with a score of 3:1 in favor of the team of Dmitry Ryabykin.
Mikhail Vorobyov scored for SKA (18th minute).
Kristian Yarosh (23rd), Reid Boucher (47th) and Sergei Tolchinsky (60th) scored at Avangard.
The club from St. Petersburg in the next match on August 9 will play with the national team of young stars of Russia (players under 25).
The Omsk team on the same day will meet with the Vladivostok "Admiral".
Earlier it was reported that Korban Knight's hat-trick helped Avangard defeat Dynamo Minsk at the Sochi Hockey Open.