One of the most stunning trails in the United States was explored recently by two world-class ultrarunners.
Get an inside look at running on one of the United States' most stunning trails.
He's out to break his own course record this weekend.
Tyler McCandless returns to defend his title on Sept. 1.
Over 20,000 runners turned out for the event.
The "King" will be chasing fourth consecutive XTERRA title in Ogden, Utah on September 25.
Defending champion Mike Wardian hopes to secure the $15,000 prize.
The race delivers $100 million in positive economic impact to Hawaii.
The men's winner didn't take the lead until mile 17.