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 ...

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 ...

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 ...

Entailing 176km of technical trails and almost 10,000m of positive elevation, the UTMB World Series Final, better known as the UTMB, is a formidable alpine endeavour – and this year’s edition saw some ...

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 ...

But a year later, as the UTMB Mont Blanc weeklong festival of trail running kicks off on August 26, everything seems back to normal in Chamonix. What happened along the way is a tale of drama, perhaps ...

In 2018, I was on one of the press vehicles for the Ultra Trail du Mont Blanc, the 106-mile race around the Mont Blanc massif that is widely regarded as the most prestigious event on the ultra circuit ...

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 ...

Pro Ultra Trail Runner dominated the UTMB race powered by Amazfit’s Helio Strap and the newly launched Amazfit T-Rex 3 Pro smartwatch Amazfit is proud to celebrate Ruth Croft’s achievement at the 2025 ...

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, ...