Japan's 17-year-old Taiga Hasegawa won the men's big air at the world snowboarding championships Saturday, making him the country's first winner of the event at the worlds.The championship debutant scored 177.25 points from the first two of his three runs. Japanese compatriot Miyabi Onitsuka finished runner-up to Austria's Anna Gasser in the women's big air for her second medal of the worlds in Bakuriani, Georgia.Hasegawa earned 20 points more than second-place Mons Roisland of Norway. Switzerland's Nicolas Huber came in third with 150.50."I entered this event, trying to think it would be j…READ FULL ARTICLE