The Hardrock Hundred Mile Endurance Run, trail running’s most revered test of mountain endurance, returns to the San Juan Mountains of south-western Colorado on Friday, 10 July. A field of 146 runners will set out from Silverton to tackle roughly 100 miles and some 33,000 feet of climbing across a course that tops out near 14,000 feet on Handies Peak, before the survivors return to town to complete the tradition of kissing the Hardrock itself at the finish.
This year the loop runs clockwise, the direction alternating each edition to spread the wear and tear of the route’s relentless ascents and descents. There is no prize money and no pretence of a fast course; Hardrock is defined instead by altitude, exposure and the slow accumulation of vertical gain through some of the most remote terrain any hundred-miler visits. Runners must clear a demanding qualifying standard simply to enter the lottery, and a finish under the 48-hour cut-off is regarded as an achievement in its own right.
Conditions look set to differ markedly from the heavy snow years that have occasionally forced cancellations. The 2025-26 season delivered the second-lowest snowfall total on record in Silverton, at around 85 inches, leaving the high passes unusually clear for early July. Steady rain through May, however, has eased the fire danger that low snow can bring and raised the prospect of a wet, muddy edition, with afternoon storms over the high country always a factor for runners strung out across the ridgelines.
The men’s field is led by defending champion Ludovic Pommeret, the French veteran whose 2025 victory underlined a remarkable late-career run at the sport’s longest events. He heads a lottery-selected field of 146 that, in keeping with Hardrock’s ethos, blends 82 runners who have never finished the race with 64 who have already earned their place in its history. Depth, rather than star billing, is the hallmark of an event where local knowledge and patience often matter more than raw speed.
The women’s race draws much of its attention from the return of Courtney Dauwalter, whose wins in 2022, 2023 and 2024 made her synonymous with the event before a year away. Alongside emerging names such as Careth Arnold, she anchors a women’s field rich in experience of high-altitude hundred-milers. With Western States having run only a fortnight earlier, the close sequencing of trail running’s two great American classics gives the build-up to Silverton an extra edge as July approaches.