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Margarita Mamun (born November 1, 1995, Moscow.) - Russian gymnast, Olympic champion (2016) , the seven-time champion in rhythmic gymnastics world (2013, 2014, 2015), four-time European champion (2013, 2015) four-time winner of the Universiade in Kazan (2013), champion of the I European games 2015 in Baku, multiple winner of the Grand Prix and the world Cup.

Three-time absolute champion of Russia in rhythmic gymnastics (2011, 2012, 2013), and two-time silver medalist of national championships (2014, 2016). Fans called Margarita "Bengal tigress."