Interesting story. I wonder what my runner friends think of this: http://wapo.st/2gPXEEK
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agreed. hot day, slow 1st split. nobody gains 4 mins per mile on later splits (esp. when it's 1mpm faster than PR pace.)
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hot day for nearly every runner adds time to their pace. My PRs for 5 and 10Ks had a temp below 30.
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