A marathon is a big challenge, no doubt, but once you’ve done one, or even several, where do you go next? How about running even further and earning the title of ultrarunner? This booming format is ...

MONTEREY – There will be moments they hallucinate and almost fall asleep while attempting to move their legs on a midnight trail where the only light to guide them comes from the lamps on their heads.

Four months on from winning Britain’s toughest ultra-marathon, where she ran 268 miles across uneven Pennine terrain, Anna Troup reflects on her achievement with considerable modesty. “People keep ...

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 ...