50K ultramarathons in North America in 2026

Rugged, heat-defined 24-hour and 48-hour ultra with smart pacing, cooler nighttime hours, and a laid-back, communal atmosphere

11,400 feet of elevation gain across the Wasatch Mountains, summiting Snowbird, Baldy, and Hidden Peak amid alpine vistas

Northern Sierra Nevada trails with steep elevation gains, raw terrain, and views of mountain lakes, granite ridges, and dense forests

50-mile route from Bear Creek Regional Park through High Drive, Cheyenne Canon, and notable landmarks including Seven Bridges and Helen Hunt Falls

Boardwalk and forest trails through cypress and tupelo swamps, mixed hardwoods, and along the Tickfaw River in Tickfaw State Park

Hilly, shaded singletrack through hardwood forest with significant elevation changes, occasional lake views, and multiple well-stocked aid stations

50k course with nearly 6,000 feet of elevation gain, rugged rocky trails, and technical terrain in Coopers Rock State Forest

Island loop course on Grand Island with single track, dirt roads, sandstone cliffs, hardwood forest, and views of Lake Superior and Pictured Rocks

Relatively flat out-and-back rail trail from McCloud with views of Mt. Shasta and excellent footing in a mountain setting

9-mile road loop from Kalama Valley Park, gentle elevation, Heartbreak Hill descent, support stations every 2.5 miles, cupless, sustainability focus

Scenic trail courses in Canandaigua featuring 100-mile and 50-mile ultrarunning challenges

High-altitude routes up to 3,480 metres through dramatic Sierra de Arteaga mountain scenery and challenging natural trails in northern Mexico.

Ridge climbs, northwest forests, 10,200 feet of elevation gain, singletrack trails, and panoramic Mt. Rainier views

Technical mountain course with 2500 meters of elevation change, old-growth forests, bike trails, and sweeping North Shore views

Nighttime 50k on historic Cahuilla tribal lands, 7-loop course with single track and dirt road terrain, headlamp required, festive atmosphere

Scenic trails weaving through 5,500 acres of Whiterock Conservancy, with river valley views and varied landscapes in Coon Rapids, Iowa

Smooth 1.64-mile paved loop with minimal elevation gain, limestone bluffs and oak hills, USATF-certified course under the Buck Moon in Pace Bend Park

Gnarly single track and fast double track across Central Pennsylvania’s rugged Allegheny Front, steep climbs, demanding descents, and sweeping ridge views

High-altitude ultramarathon across the Sierra de Arteaga mountains, with routes from 50 km to 163 km amid northern Mexico’s mountain scenery

Looped 5k trail course with intense heat, Last Man Standing and 50K ultramarathon options, capped at 100 runners