Travelling aboard an icebreaker from Longyearbyen, competitors reached the Geographic North Pole after several days at sea.
There, polar specialists marked out a safe course, protected at its perimeter by Polar Bear guards. The marathon began at 08:48 CEST, with runners battling poor visibility and biting winds.
Britain’s Oleg Polyntsev claimed victory in 3:43:25, while Becca Pizzi of the US set a new women’s record at 4:46:26. A team of 5 runners, including two septuagenarian, also secured a Guinness World Record.