Trail Wasatch, Utah, USA
Wasatch Front 100
161 km · 7,900 m+
One hundred miles of heaven and hell along the rugged Wasatch crest above Salt Lake City. A historic and ferociously tough mountain 100.
Trail Ultra 100 Miles Altitude
←
All races
Trail Ultra 100 Miles
Run Rabbit Run 100
Steamboat Springs, Colorado, USA September 11, 2026
Why it's worth it
A classic Colorado 100-miler through the aspen forests and high country above Steamboat Springs. Generous prize money draws a deep field.
More races
View all → Trail 
Trail Auburn, California, USA
Canyons by UTMB
161 km · 5,800 m+
A fast, runnable 100-miler on the historic Western States trails of the California foothills. A key UTMB World Series major.
Trail Ultra UTMB 100 Miles
Trail Manizales, Colombia
Ultra Trail Los Nevados
100 km · 6,000 m+
A high-altitude ultra through Colombia's coffee region and paramo, beneath the snow-capped volcanoes of Los Nevados. Thin air and vivid landscapes.
Trail Ultra Altitude Volcanic