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Heat & Humidity Pace Adjuster
Get your adjusted goal pace for hot or humid race conditions.
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Enter a pace as M:SS, for example 8:30.
Based on Mark Hadley's temperature + dew point table (Maximum Performance Running, 2013): add the temperature and the dew point in °F and slow down by the percentage for that sum. For intervals of a mile or less, Hadley suggests half the adjustment. Adjust for your own heat acclimatization. Hadley's table