Career
In 2012 Chon participated in his first international youth competitions. Since 2014 he climbs as an adult in the Bouldering World Cup. He finished the season at rank 9.
Chon reached the finals of a world cup four times in 2015 and finished 6th in Toronto, 2nd in Chongquing, 1st in Haiyang, and 3rd in Munich.
In the past, Chon participated in competitions in the disciplines of Lead climbing and Speed climbing, but since he climbs in the world cup, he specializes in bouldering.