Fitness 4 Reasons Kenyan Runners are the Best in World by Shane Roberts — Jul 23, 2013 4 / 5 Running on dirt/sand (no tarmac) Finding a nice dirt road will be hard in America, but if you’re interested in running distance races for years, you’d be smart to avoid tarmac and asphalt. Share this:FacebookTwitterGooglePinterestTumblrEmail Related 1 2 3 4 5 TAGS kenya long-distance marathon runners around the web