Achievements Chung was a nine-time All England Open champion (four-time in women"s doubles and five-time in mixed doubles), and won the gold medals at the 1989 and 1991 IBF World Championships in mixed doubles, with Park Joo-bong. She also won a silver medal in the 1989 in women"s doubles, with Hwang Hye-young, and a silver and a bronze medal at the 1987 IBF World Championships in mixed doubles and women"s doubles respectively.