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.
He hopes to do much better than his sub-par showing three years ago.
He will be competing on the American squad in the International Team Challenge.
She happened to be an EMT.