While the official opening ceremonies are not until Friday night, the first mixed doubles curling event in the Olympic Games began a day early to open the competition. The Winter Olympics will conclude with the February 25 closing cermonies.Jang took the opportunity to make Olympic history in her opening round-robin match match alongside Lee Ki-Jeong against Finland's Oona Kauste and Tomi Rantamaeki, before about 2,500 spectators at Gangneung Curling Centre.After seven round-robin matches through Sunday, the top four teams will reach Monday's semi-finals with medal matches set for Tuesday.