What is Effort-based Running? (AtoZrunning vs the Search Engine)

Today on AtoZrunning:

We wrap up our series on challenging the search engine with our final question: What is effort-based running? In the world of running, global marathon performance has shifted in the last 16 years, but the exact nature of that shift will SHOCK you. A generational achievement marked this year’s Footlocker XC Champs. Will it prelude greater things to come? Do you run in the morning or afternoon? Daniel Pink reminds us which is better and why. 

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