Help Slate build a better running calculator by filling out a short survey. In the article below, Christie Aschwanden explains why existing calculators are flawed, and how you can help create a better ...

Exercising in hot and humid weather is far from ideal, but those who are avid runners have no choice but to lace up their sneaks and face the heat. If you are struggling to maintain a nine minute mile ...

Preparing for a fall marathon, a runner posts an 18-minute 5K PR in a tuneup race. Excited, he punches the time into three different race-equivalency calculators to find his projected time for the ...