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Best photos from Challenge Roth
A collection of photos from Sunday's Challenge Roth, an Ironman-distance race held in Germany, and one of the most popular -- and well-supported -- triathlons in the world. This year's edition was won by Timo Bracht (GER) on the men's side, while Mirinda Carfrae (AUS) took home the women's title.
Badwater in pictures
Beginning in Death Valley, 280 feet below sea level, and finishing at 8,350-feet, the Badwater Ultramarathon -- the toughest footrace in the world -- takes runners 135 miles through some of the planet's most unforgiving terrain.