Australia's Max Neumann is among four triathletes who have bettered the previous Hawaiian Ironman world championships course record on Sunday (AEDT).
Norwegian Gustav Iden won the race in seven hours 40 minutes 24 seconds over the 3.8km swim, 180km cycle and 42.2km marathon run course.
Sam Laidlow of France was second at Kailua-Kona on Hawaii's main island in 7:42:24 and Norwegian Kristian Blummenfelt completed the podium in 7:43:23.
