The Denver-based race, which is neither endorsed by or affiliated with Taco Bell corporate, invites what one participant ...

The upgraded battery life on the Apple Watch Ultra 3 meant that I could take it away for a weekend trip to run a marathon ...

The spiciest event in Denver -- the Taco Bell 50K -- goes down on Saturday ... and, we talked to the founders about the race ...

This weekend, hundreds of ultramarathoners in Colorado are hoping their legs don’t give up on them — and neither do their ...

I'm testing the Garmin Venu 4 and the Apple Watch Ultra 3 against the most accurate heart rate monitor on my lunchtime run.

The thought of coming last in a race fills some people with dread. However, when you run an ultra marathon, the attitude is very different. In fact, the opposite can be true. At these events, just ...

Hunter Leininger does things a bit differently. He’s not going out for a jog around the block or even pushing to finish a ...

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 ...

The author, who was released from prison in August, is running the Medtronic Twin Cities Marathon this weekend. Last year I ...

Launched in 2016, the Cape Wrath Ultra was the brainchild of British endurance athlete and race director Shane Ohly, whose ...