 Ovchynnikova was then set to fight Jeri Sitzes in a match for the WBC Muaythai Women's International Bantamweight (-53.5 kg/118 lb) title in Haikou, China on December 18, 2010 but Sitzes withdrew for undisclosed reasons and was replaced by Li Xiao in a non-title fight.She defeated Li by unanimous decision.Taking the place of Cong Wang who pulled out of the fight, Ovchynnikova faced professional debutant Tiffany van Soest in Las Vegas, Nevada, United States on October 22, 2011, and lost by technical knockout after retiring in her corner with a broken hand at the end of round two.