The world's only certified marathon run on the frozen Arctic Ocean at the Geographic North Pole. Minus 30 and floating on six feet of ice.
Trail 42.2 km · 100 km option
Run on snow and ice at the foot of the Ellsworth Mountains, just 1,000 km from the South Pole. The southernmost marathon on Earth, in brutal sub-zero cold.
Trail 42.2 km · trail
Run the ancient Inca Trail over high passes to a finish at the Sun Gate above Machu Picchu. One of the most extraordinary and difficult marathons in the world.
Trail 42.2 km · 2,400 m+
America's Ultimate Challenge, climbing from Manitou Springs to the 4,300 m summit of Pikes Peak and back. Thin air and relentless gradient make it a legend.