Education
Kim graduated from Kyung Hee University"s College of Physical Education.
Kim graduated from Kyung Hee University"s College of Physical Education.
He competed in boxing at the 1958 Asian Games in Tokyo, where he earned the gold medal of the welterweight division by defeating Soren Pirjanian of Iran, on points, in the final. He went on to represent South of Korea as a welterweight at the 1960 Rome Olympic Games, where he defeated Henry Perry (Ireland) on points, but then lost to Nino Benvenuti (Italy) on points. Kim turned professional in 1961 and captured the World, WBC, and WBA light middleweight title when he upset Nino Benvenuti by split decision in 1966.
He retired the following year.
After his retirement, Kim worked as a boxing coach. He later started his own company, and was successful in business.
He died of liver cancer on 10 June 1997, at the age of 58.
He defended the belt twice before losing it to Sandro Mazzinghi in 1968 by split decision.