Chang made her international debut in 2008 at the World University Games held in Chinese Taipei. The following year she was selected to compete in Summer Universiade in Belgrade, winning gold medal in the women's team recurve event. She successfully qualified for the South Korean senior team in 2010, but in 2012 narrowly missed out on selection for that year's Summer Olympics in London, placing fourth in the national team trials in which the top three were chosen for Olympic competition.