Affects of Heat on Performance
Temperature Affects upon Performance Chart
One challenge for runners is figuring how to adjust training and racing speeds relative to outdoor weather conditions. A common question arises: "How much time should I add or subtract from my normal pace as temperature changes?"
In the chart below you will find performance changes for an example runner who normally covers 5:00 per mile when temperature is ideal.
* The formula I use below doesn't’t factor humidity or wind, so keep that in mind.
Heat Index Total
Change Sample Adjustments to Pace Per Mile
* All rights reserved. December 20, 2005