Olga Poltoranina
Olga Poltoranina (née Dudchenko; born 27 February 1987) is a Kazakhstani biathlete. She competed in the 2010/11 and 2011/12 World Cup seasons, and represented Kazakhstan at the Biathlon World Championships 2015 in Kontiolahti.Her husband is cross-country skier Alexey Poltoranin. Provided by Wikipedia