For the 2006/07 season, she changed her citizenship with Kazakhstan. At the World Championships in 2007, a summer biathlon in Otepää, she won silver medals in the sprint and mass start behind Natalya Sokolova. In the individual competition of the World Cup 2009, Khrustaleva achieved sixth place. At the 2010 Winter Olympics, she managed 5th place in the sprint and 2nd place in the singles.