For the third year in a row, tech billionaire Mark Zuckerberg ran the Stanford Medicine My Heart Counts 5K—this time crossing ...

In an Olympic rematch, she took down gold medalist Sifan Hassan and ran the fastest-ever marathon in a women’s-only race.

Lactate is a byproduct of intense exercise. During tougher efforts, it accumulates in your blood faster than your body can ...

Many top marathoners took to the streets on London on Sunday morning. The third World Marathon Major of the season, the ...

Before training for 26.2, she only ever ran two miles straight.

Remember, a second workout—whether that’s walking or running—should be gentle. And while a leisurely stroll is better than ...

The mile world record holder will attempt to be the first woman to run a sub-4. Here's what I learned about her training in ...

The Olympic alternate steadily reeled in Annie Frisbie in the final miles to place seventh in a huge personal best.

A premier running event of the summer, the Falmouth Road Race features a breathtaking seven-mile seaside course.

Generally speaking, runners find their lactate threshold pace to be about a seven or eight out of 10 effort on a rate of ...

I visited the champion at her training camp in Kenya. Here’s what I learned and what it will take for her to succeed.

In the Monday edition of the Boston Globe, 2018 Boston Marathon champion Des Linden announced that she would be retiring from ...