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Six athletes running relay race - Stock Photo - Dissolve

Are Middle Lanes Fastest in Track and Field? Here’s What the Data Shows

Marathon Nutrition: Proper Fueling Makes a World of Difference

Global running day stats about runners around the world - Canadian

How Evolution Made Humans the Best Long-Distance Runners on Earth | The

Look Again: The day's most compelling images from around the globe

How One Kenyan Tribe Produces The World's Best Runners | NCPR News

Runners at this popular 10K told their results are invalid, due to

Bacteria enriched in marathon runners | National Institutes of Health (NIH)

11 Great Reasons To Have A Running Partner - Runners First