Sumiko Yokoyama represents Japan in the 5km event on the Asian Winter Games (an international multi-sport event held every four years for members of the Olympic Council of Asia) in 1999 held in Gangwon.
Sumiko Yokoyama represents Japan in the 5km event on the Asian Winter Games (an international multi-sport event held every four years for members of the Olympic Council of Asia) in 1999 held in Gangwon.