Japan's Kagiyama, Chiba lead competition at Four Continents france24.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from france24.com Daily Mail and Mail on Sunday newspapers.
Defending champion Shoma Uno will face an uphill battle against American "Quad God" Ilia Malinin when he attempts to win his third consecutive world figure skating title in March.
Two-time defending world champion Kaori Sakamoto takes a commanding lead at the Japan national figure skating championships by winning the women's short program with a score of 78.78.