The Colorado 100-mile race became so popular it needed a lottery system. Its 50-50 gender split is one of the first of its kind.
Latest in Trail Races
Best known as the filming location for Jurassic Park and Godzilla, Hawaii's Kualoa Ranch was also recently home to the Xterra Trail Run World Championship.
Browse photos from the third annual Ultra Trail of Angkor, held on January 19-20, 2018.
The third iteration of the Anantapur International Relay Ultramarathon took place in India on January 23, 2018.
Whether you are a trail veteran or a complete newbie, we've rounded up a list of trail races that cater to different experience levels.