Trail

The soft-spoken Kiwi surrounded herself with a team that left no stone unturned. But ultimately, flexibility proved to be an equally critical ingredient at the world’s most prestigious ultra, she told us.

The snowy peaks, barren canyons, and dusty trails of the Mustang region of Nepal will take your breath away, quite literally.

A transgender runner finds joy, community, and unexpected support while navigating the simple—but loaded—act of registering for a race.

With thousands of runners from literally over 100 countries participating at the 2025 UTMB Mont-Blanc race week, there's no shortage of special moments. We present the 23 images that defined this year's pinnacle week of global trail running.

He's trying to climb almost all of the tallest U.S. peaks in one month, and our mountain correspondent Kyle Richardson joined for the start to give us the exclusive inside scoop on his training, nutrition, sleep schedule, and "why."

Alongside a blazingly fast race up front at this year's 2025 UTMB Mont-Blanc, thousands of trail runners had the experience of a lifetime. Photographer Jacob Zocherman was at the finish line to capture the highs and lows.

During a chaotic week of high-octane racing, this 300-kilometer event over glaciers and via ferratas remains refreshingly true to the mountain spirit. Chamonix resident and 2025 PTL racer Doug Mayer explains.

Using a patient approach and a major push through the second half of a brutal day (and night) of racing, Ruth Croft of New Zealand has won the 2025 UTMB, dethroning three-time champion Courtney Dauwalter. Read how it all played out.

Tom Evans has won the 2025 UTMB men's race, and Ruth Croft has won the women's event. Outside Run is on location in Chamonix, France, with behind-the-scenes coverage.

We followed the race from Switzerland to Chamonix, France, to capture the rawness of this year's unforgettable 50K championship.