 Complete the following phrase:  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 