Wu Dajing clocked a world record on Thursday en route to winning the short track speed skating men's 500 meters for China's first gold medal of the Pyeongchang Olympics.Wu, the 2014 Sochi Olympic 500 silver medalist, flew past the line at Gangneung Ice Arena in 39.584 seconds. South Korea's Hwang Dae Heon and Lim Hyo Jun won silver and bronze, respectively."Today, I didn't give my competitors a chance, and I kept my speed from the start. More importantly, I think I believed in myself," Wu said."I'm very emotional and happy to have won China's first gold here and I look forward to Beijing 20…READ FULL ARTICLE