Wanki Chae is a Brazilian jiu jitsu black belt under John Frankl, as well as a top contender in this sport's featherweight division while being also one of the first high end competitors to come out of South Korea. Chae is well known for his submission oriented game and for his wins in important tournaments such as the IBJJF London Winter Open, UAEJJF Abu Dhabi Grand Slam Tour and Rickson Cup.