Trail ultramarathons in the United States
Find trail ultramarathons in the United States. Compare 330 upcoming events by date and location. Open a race guide for the course, recorded editions and official entry information where available.
Events to explore include No Hands Trail Run, River Ranch Resolution Run and San Diego 50 & Trail Runs.
Narrow your search to Texas, California and Arizona, or browse the other locations below.
Compare running races by distance, date and surface, from shorter road events to trail races and ultras.
374 listed events · 330 with upcoming dates
Upcoming ultramarathons
330 matching events, earliest date first. Entry availability is shown separately.
No Hands Trail Run
USAAuburn, California
Trail races in the American River canyon near Auburn.
Date listed · latest organiser confirmation not yet checked.
River Ranch Resolution Run
USALiberty Hill, Texas
New Year trail races at River Ranch County Park, with distances for adults and children.
Date listed · latest organiser confirmation not yet checked.
San Diego 50 & Trail Runs
USAEscondido, California
Trail races through San Pasqual Valley and around Lake Hodges, with shorter and junior options.
Date listed · latest organiser confirmation not yet checked.
San Tan Scramble
USAQueen Creek, Arizona
Desert trail races among the foothills of the San Tan and Goldmine mountains.
Date listed · latest organiser confirmation not yet checked.
St. Croix 40 Winter Ultra
USAHinckley, Minnesota
A self-supported winter endurance race through St. Croix State Park.
Date listed · latest organiser confirmation not yet checked.
Atlanta Fat Ass
USALithia Springs, Georgia
Member-only winter trail races at Sweetwater Creek State Park.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
H9 Fierce Dragon
USABlairsville, Georgia
Mountain ultras and shorter trail races based at Vogel State Park.
Date listed · latest organiser confirmation not yet checked.
Southern Tour Ultra
USAWilmington, North Carolina
Looped trail ultras and a relay in the Wilmington area.
Date listed · latest organiser confirmation not yet checked.
Coldwater Hundred
USAGoodyear, Arizona
Desert trail races through the foothills of the Sierra Estrella mountains.
Date listed · latest organiser confirmation not yet checked.
Harbison Trail Race
USAColumbia, South Carolina
Winter trail races through Harbison State Forest.
Date listed · latest organiser confirmation not yet checked.
Helen Holiday Trail Race
USAHelen, Georgia
Winter trail races around Unicoi State Park and Anna Ruby Falls.
Date listed · latest organiser confirmation not yet checked.
Long Haul 100
USALakeland, Florida
A hundred-mile trail ultra and a shorter race at Colt Creek State Park.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Ouachita Switchbacks
USABig Cedar, Oklahoma
Technical trail races on the Ouachita Trail near Big Cedar.
Date listed · latest organiser confirmation not yet checked.
The Shippey
USAHigh Ridge, Missouri
A weekend of winter trail races at Beaumont Scout Reservation.
Date listed · latest organiser confirmation not yet checked.
Tsali Ultra
USABryson City, North Carolina
Trail races around the Tsali Recreation Area beside Fontana Lake.
Date listed · latest organiser confirmation not yet checked.
Whitewalker Ultra
USAPalmyra, Wisconsin
Winter trail ultrarunning on the Ice Age Trail from Emma Carlin Trailhead.
Date listed · latest organiser confirmation not yet checked.
Big Bend Ultra
USATerlingua, Texas
Desert trail races through Big Bend Ranch State Park.
Date listed · latest organiser confirmation not yet checked.
Crystal Springs Winter Trail Run
USAWoodside, California
Winter trail races through Huddart Park and the coastal redwoods.
Date listed · latest organiser confirmation not yet checked.
Waterfall 50K
USALuray, Virginia
A member-only winter trail ultra in the Massanutten Mountains.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Cowboy Yeti
USABastrop, Texas
Trail races through Bastrop State Park.
Date listed · latest organiser confirmation not yet checked.
Florida Roots Trail Series: Fort Clinch
USAFernandina Beach, Florida
Singletrack trail races around the historic Fort Clinch.
Date listed · latest organiser confirmation not yet checked.
Folsom Lake Sweetwater Trail Run
USAEl Dorado Hills, California
Trail races beside Folsom Lake, mainly on singletrack with some dirt road.
Date listed · latest organiser confirmation not yet checked.
Mountain Mist 50K
USAHuntsville, Alabama
A technical 50K on the rocky trails of Monte Sano.
Date listed · latest organiser confirmation not yet checked.
Pemberton Trail Races
USAFountain Hills, Arizona
Desert trail races on the Pemberton Trail.
Date listed · latest organiser confirmation not yet checked.
Rise Alamo City Trail Ultra
USASan Antonio, Texas
Trail races through Eisenhower Park in San Antonio.
Date listed · latest organiser confirmation not yet checked.
Running the Rose
USATyler, Texas
Trail races through the pine woods of Tyler State Park.
Date listed · latest organiser confirmation not yet checked.
Del Dios Trail Race
USAEscondido, California
Trail races around Lake Hodges, with singletrack and dirt service roads.
Date listed · latest organiser confirmation not yet checked.
Rocks and Roots Winter Series
USALewis Center, Ohio
Winter trail races on the Rocks and Roots Trail at Alum Creek State Park.
Date listed · latest organiser confirmation not yet checked.
Arrowhead 135
USAInternational Falls, Minnesota
A winter endurance race from International Falls to Tower along the Arrowhead State Trail.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Arches Ultra
USAMoab, Utah
Winter trail races beside Arches National Park on the Bar M, Klonzo and Klondike trail systems.
Date listed · latest organiser confirmation not yet checked.
Race archive
Past races and previous editions
Looking back at a race? Browse the guides below for recorded editions. This section also includes events awaiting a new date and cancelled editions. Previous editions of races in the upcoming calendar are available through their race guides above.
Open the race archive to browse past events and races awaiting a new date.
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