The Flat Branch Ultra, a United States Track and Field-certified 50K ultramarathon, will make its return to Columbia in ...

The Flat Branch Ultra, a United States Track and Field-certified 50K ultramarathon, will make its return to Columbia in February 2027.

Maybe you jog for exercise. Maybe you've run 10Ks or marathons. But you haven't run nearly as far as this Utah man. Despite all odds, Eric Johnson has really gone the distance.

Add Yahoo as a preferred source to see more of our stories on Google. Scientists have long hypothesized about a theoretical limit to human energy use. Yet elite endurance athletes are constantly ...

From muscle fibers to mental grit, here’s the science behind why some bodies can endure ultramarathons, while others hit the wall far sooner. Ultramarathons sit at the far edge of what the human body ...

I am not a natural-born runner, but I ran my first ultramarathon just before turning 50. Here’s how I finally got consistent and learned to love running.

In the sport of ultrarunning, athletes often defy human limits. But at a recent 100-kilometer race in Wales, one runner took it to another level. As seen in photos that quickly went viral, runner — ...