Arunović has won many medals, but most importantly has won on the 2010 ISSF World Shooting Championships in Munich. She won the gold medal in 10 m Air Pistol, individual and team silver medal, along sister Jelena and Jasna Šekarić in 25 m Pistol. She became the first sportswoman from Serbia that has provided the advent of the 2012 Summer Olympics in London.