Rory Fraser's performance broke the state record in the mile.
The inaugural relay event kicks off in September.
The "King" will be chasing fourth consecutive XTERRA title in Ogden, Utah on September 25.
Over 2,000 pairs of shoes were donated by U.S. runners.
The event's Corporate Cup Challenge winners were honored at the Denver Athletic Club.
The American 10,000m record holder is confident of her chances.
She was the first American finisher at this year's Beach to Beacon 10K.
He is the co-founder of the Barefoot Running Club in Boulder, Colorado.
If you are fortunate enough to get away to Aspen, Colo. this weekend, check out these two opportunities to go on guided hikes/trail runs.
Over 2,000 runners are expected to compete.