[3] Vorobyev’s odyssey from Russia to the United States began when he met U.S. mixed-pair gymnast Arthur Davis of Empire AcroGymnastics at a competition in Belgium.
[4] Under Vorobyev’s tutelage, Davis and Booth became the first U.S. athletes to win the mixed-pair all-around gold medal at the 2002 Sports Acrobatics World Championships in Riesa, Germany.
Two years later, Vorobyev's athletes repeated their world-championship gold-medal performance in the all-around at the 2004 Sports Acrobatics World Championships in Lievin, France.
[6] Vorobyev also coached the mixed pair of Michael Rodrigues and Clare Brunson at Empire AcroGymnastics.
Rodrigues and Brunson captured the mixed-pair bronze medal at the 2006 World Championships in Coimbra, Portugal.