After retiring, he became a sports commentator for Seoul Broadcasting System and covered fencing events at various international tournaments. In November 2021, he was appointed coach of the men's sabre team.
Won, together with Oh Eun-seok, Kim Jung-hwan and Gu Bon-gil, were selected for the national team to compete at the 2012 Summer Olympics[7] The Olympics began on a sour note for them as he, Kim and Gu all did not make it past the semi-final stage of the individual event; he lost in the last 16 to Nikolay Kovalev, the eventual bronze medallist.[8] They managed to win a historic gold in the team event, South Korea's first ever Olympic gold medal in the men's team sabre category.[9][10] The quartet continued to dominate in the team events; in the year 2014 alone they swept gold at both the Asian Championships and Asian Games hosted at home and won silver at the World Championships. They had a disappointing run at the 2015 World Championships as none of them reached the final in the individual event and then lost by only a point to France in the quarter-finals of the team event. A week later, they successfully defended their team gold medal at the Asian Championships, his last major international competition. He and Oh both retired from the national team at the end of the season.[4]
In 2016 Won was awarded the Order of Sports MeritCheongnyong (청룡장; English: Blue Dragon) class, the South Korean government's highest honor bestowed on professional athletes who meet the criteria.[11][12]
Won retired from the national team in 2015 but continued to play amateurly and coach at his club. He also became a commentator for SBS and covered fencing events at the 2016[15] and 2020 Summer Olympics[16] and the 2018 Asian Games.[4][17]
In November 2021, ahead of the Orleans Grand Prix, the Korean Fencing Federation announced that Won had been appointed coach of the men's sabre team.[18][19]
Personal life
Won married his girlfriend of three years, a flight attendant, in September 2015.[20]
