In the 2013 BWF World Championships – Men's singles the defending champion won the olympics how many times?
2013 BWF World Championships – Men's singles The Men's Singles tournament of the 2013 BWF World Championships was held from August 5–11. Lin Dan was the defending champion.
Andrey Ashmarin Andrey Olegovich Ashmarin (Russian: Андрей Олегович Ашмарин ; born 12 February 1984) is a Russian badminton player. He became the runner-up of 2013 Russian Open in men's doubles event with his partner Vitaly Durkin.