Austrian ski jumper Stefan Kraft won his third World Cup title with victory on the giant hill in Norway’s Vikersund on Sunday while Nika Prevc won her first overall prize as women’s ski flying made a successful debut. American Jessica Diggins and Norwegian Harald Østberg Amundsen also secured overall World Cup glory in cross-country skiing’s finale in Falun in Sweden, while the Nordic combined season was due to wrap up later in Trondheim, with the titles already having been decided. The 30-year-old Kraft has dominated this season and his triumph over 244.5 metres for 256 points in the one-off …