An ultramarathon runner has broken the women's record at a race in the United States where she ran almost 400 miles in 95 ...

The research, published today in Current Biology, showed that ultramarathoners can burn an astounding 11,000 calories per day ...

Scientists have long hypothesized about a theoretical limit to human energy use. The research, published today in Current ...

Kevin Valente completed a 237-mile ultramarathon in the Italian Alps, taking 5 and a half days to finish the race, while ...

This year’s edition of the race that started the backyard ultramarathon craze, the 2025 Big Dog’s Backyard Ultra, saw Sarah ...

Because six weeks earlier, I’d finished treatment for stage 3 breast cancer, and better yet, I’m now in complete remission. I ...

More than 700 runners took part in a 50k run based on Taco Bell locations in Denver, Colorado for an annual race.

If you came in search of motivation today then you have come to the right place. David Park started running around 450 days ago and worked out like David ...

The 8th edition of the International Taco Bell 50k Ultramarathon took place in Denver on Saturday, Oct. 4, 2025.

Move over Dunkin’ — America runs on Taco Bell. Or at least a certain subset of iron-gutted ultra-runners does. On Saturday, Oct. 5, about 1,200 registrants are expected to toe the line at the eighth ...

Six weeks after her Valentine’s Day run, Renee did another 50-mile fundraising ultramarathon in her neighborhood, this time ...

Billy Halloran knows the woods well in Myoko, Japan; he goes there for regular walks, runs, and even raced an ultramarathon ...