Japan's Mitsuki Ono won bronze and U.S. snowboarding great Chloe Kim took silver as 17-year-old South Korean Choi Ga On was crowned the new Olympic women's halfpipe champion at the Milan Cortina Winter Games on Thursday.Ono's first run featuring a frontside 1080 scored 85.00 points at Livigno Snow Park, which was enough to secure her place on the podium as falling snow created challenging conditions."My last games ended with real frustration and I'm happy to have worked hard using that as a springboard," said the 21-year-old, who came ninth during her Olympic debut in Beijing before claimin…READ FULL ARTICLE