Japan's Mone Chiba won her maiden ISU Grand Prix series event Saturday after topping the free skate to keep her overnight lead from the short program at Skate Canada International.Chiba's 17-year-old compatriot and series debutant Ami Nakai came third at Sasktel Centre, which secured her place at the Grand Prix Final in Nagoya in December after she won her debut and series-opening event, the Grand Prix de France, in mid-October.Chiba landed several triple jumps on the quarter in the free skate but still registered 144.94 for 217.23 points in total, staying above Isabeau Levito after the Ame…READ FULL ARTICLE