By Competitor.com, Published Aug. 29, 2013, Updated Aug. 29, 2013 at 8:43 PM UTC
Running and racing was once limited to the pure sport theaters of track ovals and iconic road routes. The racer’s challenge came in pushing harder and faster over familiar surfaces.
Subscribe to the FREE Competitor Running newsletter
Stay up-to-date on the latest running content.
Click to Subscribe
© 2014 Competitor Group Inc. All Rights Reserved