Sweden's Charlotte Kalla claimed the first gold on the opening day of the Pyeongchang Winter Olympics. Kalla won the women's skiathlon cross country race ahead of Norway's Marit Bjoergen, preventing her from collecting an unprecedented third straight gold medal in the event. But Bjoergen still became the most decorated woman in Winter Olympics history as she claimed her 11th medal. Third came Finland's Krista Parmakoski. The spotlight on Saturday, however is expected to fall on the unified Korean hockey team.