Mandrika started internationally for the first time in January 2011 at the Nordic Junior World Ski Championships 2011 in Otepää and finished in 28th place over 5 km freestyle and ninth place with the relay. The following year she won 40th place in the skiathlon and eighth place in the relay at the Nordic Junior World Ski Championships 2012 in Erzurum . In January 2013 she came at the Nordic Junior World Ski Championships 2013 in Liberec on the 62nd place in the sprint, on the 44th place over 5 km freestyle and on the 11th place with the relay. At the beginning of the 2013/14 season, she won the bronze medal with the relay at the 2013 Winter Universiade in Lago di Tesero . At the U23 World Championships in 2014 in Fiemme Valley , she achieved 46th place in the sprint and 25th place in the skiathlon. She ran her first World Cup race in November 2014 in Kuusamo , which she finished classically in 71st place over 10 km. In the following World Cup mini tour in Lillehammer , she reached 69th place. At the 2015 Winter Universiade in Štrbské Pleso , she achieved 14th place over 5 km classic and seventh place in the 15 km mass start race. In February 2015, she took 18th place in the skiathlon and 14th place over 10 km freestyle at the U23 World Championships 2015 in Almaty . At the season highlight of the Nordic World Ski Championships 2015 in Falun , she achieved 67th place in the 10 km freestyle, 39th place in the 30 km mass start race and 12th place with the relay. At the beginning of the 2015/16 season she finished the World Cup mini tour in Ruka in 67th place. At the U23 World Championships in 2016 in Râşnov , she came in 33rd place in sprint, 26th place over 10 km classic and 17th place over 10 km freestyle. In January 2017 she won the silver medal with the relay at the 2017 Winter Universiade in Almaty. Her best results at the Nordic World Ski Championships 2017 in Lahti were 43rd place in the skiathlon and 12th place in the relay. In March 2019, she became the Kazakh champion over 5 km freestyle in Shchuchinsk . After finishing 59th in the Ruka Triple at the beginning of the 2019/20 season, she won her first World Cup points in Davos with 27th place over 10 km freestyle and at the end of the season she achieved 47th place on the ski tour.
Kazakhstan