Soko Yamaoka

Soko Yamaoka (Japanese山冈 聡 子, Soko Yamaoka, * May 29, 1974 in Nagano, Nagano Prefecture) is a Japanese snowboarder. She won the silver medal at the Snowboard World Cup 2007 in Arosa in the halfpipe. So far she has won two World Cup races: 2005 in Whistler and 2004 in Lake Placid.