At the 2018 Winter Olympics in Pyeongchang, Yun captured a gold medal, becoming the first athlete from outside Europe and North America to win an Olympic sliding medal, and the first athlete from South Korea to win a Winter Olympic medal in a non-ice skating event. His four-run time of 3 minutes, 20.55 seconds was 1.63 seconds ahead of silver medalist Nikita Tregubov of Russia. It was the biggest victory margin in Olympic skeleton, topping 1948, when Italy’s Nino Bibbia topped Jack Heaton of the United States by 1.4 seconds in a six-heat race.