 Next year, Sim won the gold medal in the Men's Greco-Roman 48 kg at the Asian Games.Since the 1994 Asian Games, Sim swept gold medals in the Greco-Roman light flyweight(48 kg) and flyweight(54 kg) categories never losing a match at major international competitions such as Olympic Games, World Championships, Asian Games and Asian Championships until his retirement in 2000.While trying to earn his spot to compete for the 1992 Summer Olympics, in Barcelona, Sim was ranked first in the Men's Greco-Roman 48 kg at the South Korean national trials, beating 1991 World Champion Goun Duk-Yong.