Jens Jakob Andersen

Founder and CEO, RunRepeat.com

Jens Jakob Andersen is the founder and CEO of RunRepeat.com. He is a former competitive runner and statistician from Copenhagen Business School. He lives in Copenhagen in Denmark.

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Written by Jens Jakob Andersen

Several runners’ legs in motion on a road during a race, with the focus on their shoes and socks.

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Why marathon runners in the United States are getting slower

Jens Jakob Andersen