Fleet feet blaze way to fast feats on trails, cliffs, peaks
By Sunny Margerum | Friday, October 27, 2017, 12:35 p.m.
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This Sunday, Oct. 1, 2017, photo provided by HOKA One One shows professional trail runner Tim Freriks running to break the single crossing record (rim-to-rim, or R2R) in the Grand Canyon, Arizona. Freriks blazed from the North Rim to the