The world’s biggest trail running event is about to get underway in Chamonix, France, and you can tune in to the live action from the French Alps on your laptop or phone. For years, the Ultra-Trail du ...

After a long trail race, some of your red blood cells may not bend the way they should. That matters because red blood cells have a tight job description. They ferry oxygen, nutrients, and waste ...

Ruth Croft knew she had a tall task heading into this year’s Ultra-Trail du Mont-Blanc trail running race in Chamonix, France. Not only was the weather forecast calling for cold rain and snow, but ...

Jim Walmsley admitted on Thursday afternoon after winning the Orsières-Champex-Chamonix (OCC) trail running race in Chamonix, France, that it’s sometimes better to be lucky than good. And yet, he also ...

A prestigious, international trail running event is coming to Happy Valley in May. And with it will come trail improvements, a bigger spotlight — and an opportunity to qualify for a championship race ...

Pro Ultra Trail Runner dominated the UTMB race powered by Amazfit’s Helio Strap and the newly launched Amazfit T-Rex 3 Pro smartwatch CHAMONIX, France--(BUSINESS WIRE)--Amazfit, a leading global smart ...

After a long trail race, some of your red blood cells may not bend the way they should. That matters because red blood cells have a tight job description.

UTMB will host Rothrock races May 16–17, 2026, featuring 54K and 26.9K courses. Registration opens Dec 9 (priority) and Dec 11; standard fees $115–$200. UTMB commits $40,000+ in community grants, ...