Who will defy the odds?

A one-of-a-kind two-day event turns New Zealand's Wanaka region into the ultimate multi-sport race.

A two-day adventure race pushes athletes to their limits with a brutal course in a spectacular setting.

An international field of athletes battle New Zealand's rugged landscape in this brutal two-day race.

New Zealander Braden Currie takes his background in adventure racing to work his way to IRONMAN.

The watermen continue their test of skill on the competition's penultimate day.

Red Bull Romaniacs brings together some breathtaking riding in the wild, mountainous wilderness of Romania.

See the action at the Liqui-Moly Bathurst 12 Hour, an epic race for GT3 and GT4 endurance vehicles.

Tight turns, agility, and an alpine backdrop. Jérémie Heitz challenges Daron Rahlves to a slalom race.

Ben Stookesberry and a group of kayakers attempt a first descent of the Beriman River in Papua New Guinea.

Two pro kayakers run a drainage ditch in Lions Bay, Canada. It's an 800m descent with barely any water.

The watermen continue their test of skill on day two of the competition.

Ben Stookesberry and a group of kayakers attempt a first descent of the Beriman River in Papua New Guinea.