Martin Fritz Huber

A new social media initiative has many prominent endurance athletes publicly speaking out against doping. But in order to affect real change, the initiative has to come from the top down.

Pete Kostelnick just broke one of the toughest running records in history, logging an average of 72 miles for 42 days straight. He's the latest in a line of runners going back 120 years who have tested their mettle by crossing the country on foot.

Why do the times of some of the best amateur marathoners in America keep getting worse?

Last Sunday, the top four men at the Paralympic 1,500-meter race finished faster than anyone in the Rio Olympics. This has made headlines, but news outlets are missing a crucial point.

Team USA had a historic run in Rio, but that shouldn’t come as a surprise. Over the last decade and a half, the U.S. has managed to develop a stable of distance runners who rival the best in the world.

What can you learn from looking at the data from over 80 million runs? A lot, actually.

The moral behind Wayde van Niekerk’s 400-meter world record

Are these records too good to be true? There’s a lot of evidence that points to yes.

The joys of the sport, according to the very best

We wanted to know what legitimate supplements our marathoners use to gain a small advantage