Koh Hee-young

Kevin C. Young is an American former athlete. He was the winner of the 400 metres hurdles at the 1992 Summer Olympics. In the final of this event he set a world record and Olympic record of 46.78 seconds, the first time the 47-second barrier was broken, and a world record that stood for nearly 29 years until it was broken by Karsten Warholm on July 1, 2021.