Japan's Hiroto Ogiwara won the men's big air at the snowboarding World Cup event on Saturday as compatriot Miyabi Onitsuka claimed the women's competition as well as the season's overall title in the discipline.Ogiwara saved his best trick for the last of his three final runs at Steamboat Springs in Colorado, successfully pulling off his never-been-done-in-competition backside 1980 tailgrab for 94.75 points to wrap up the season's third and last meet.The best score in the final, coupled with 85.50 he earned for his second run, gave the 20-year-old 180.25 in total, enough to edge his fellow …READ FULL ARTICLE