Bioengineer iconBioengineerSep 26, 2026

Heat Rewrites the Rules of Marathon Performance, Study of Nearly 2,000 Runners Finds

For recreational marathoners, the difference between a personal best and a personal disaster can come down to a few degrees on the thermometer. A new study of nearly 2,000 male runners, published in Physiological Reports, has now shown that air temperature does not simply slow everyone down by the same margin.

Heat Rewrites the Rules of Marathon Performance, Study of Nearly 2,000 Runners Finds

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For recreational marathoners, the difference between a personal best and a personal disaster can come down to a few degrees on the thermometer.

A new study of nearly 2,000 male runners, published in Physiological Reports, has now shown that air temperature does not simply slow everyone down by the same margin.

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For recreational marathoners, the difference between a personal best and a personal disaster can come down to a few degrees on the thermometer. A new study of nearly 2,000 male runners, published in Physiological Reports, has now shown that air temperature does not simply slow everyone down by the same margin.

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