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Trail ultramarathons in North America
Compare trail ultramarathons across North America and choose where to compete next. Compare 268 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 Looking Glass 100K, Lula Lake Trail Blazer and NYC Trail Mix.
Narrow your search to United States, Canada and Mexico.
290 listed events · 268 with upcoming dates
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Upcoming ultramarathons
268 matching events, earliest date first. Entry availability is shown separately.
Looking Glass 100K
USAPisgah Forest, North Carolina
A mountain trail ultramarathon around Looking Glass Rock through Pisgah National Forest, including high ridges, waterfalls and stream crossings.
· 100K · Entry closed
Race details, entry and past editions →Lula Lake Trail Blazer
USALookout Mountain, Georgia
Trail races supporting conservation and trail maintenance across Lula Lake’s Lookout Mountain properties, with a separate children’s run.
· 50K
Race details, entry and past editions →Entry information ↗NYC Trail Mix
USAStaten Island, New York
Trail races through Staten Island’s Greenbelt, linking woodland parks and singletrack in support of the Greenbelt Conservancy.
· 50K
Race details, entry and past editions →Entry information ↗Pass Mountain Trail Runs
USAMesa, Arizona
Desert trail races from Usery Mountain Regional Park, with longer courses exploring Pass Mountain and surrounding trail systems.
· 50K
Race details, entry and past editions →Entry information ↗Red Rock Canyon Ultra
USABlue Diamond, Nevada
Desert trail races through sandstone canyons, washes and Cottonwood Valley near Las Vegas, finishing in Blue Diamond.
· 100K / 50K
Race details, entry and past editions →Entry information ↗Rosaryville Veterans Day Trail Race
USAUpper Marlboro, Maryland
Rolling woodland trail races through Rosaryville State Park, beginning and ending at the Pavilion picnic area.
· 50K
Race details, entry and past editions →Entry information ↗Truth or Consequences Desert Ultra
USATruth or Consequences, New Mexico
Desert trail races on steep, rocky and sandy terrain near the Rio Grande, starting and finishing at Rotary Park.
· 50K
Race details, entry and past editions →Entry information ↗Wild Hare Trail Race
USAWarda, Texas
Looped trail races through the fields, wooded trails and short climbs of Bluff Creek Ranch, with a youth trail run.
· 50K
Race details, entry and past editions →Entry information ↗Austin Rattler Run
USABurnet, Texas
Trail running races on the singletrack, doubletrack and ranch roads of Reveille Peak Ranch in the Texas Hill Country.
· 50K
Race details, entry and past editions →Entry information ↗Colorado Cold Rush Ultra
USAColorado Springs, Colorado
Trail races from Bear Creek Regional Park, with longer routes climbing historic High Drive above Colorado Springs.
· 50K
Race details, entry and past editions →Entry information ↗Dinosaur Valley Endurance Run
USAGlen Rose, Texas
Trail races over the rocks, roots and rolling hills of Dinosaur Valley State Park, with morning and evening short-course options.
· 100K / 50K
Race details, entry and past editions →Entry information ↗Dizzy Fifties
USAHuntsville, Alabama
Figure-eight trail races on Monte Sano, combining plateau trails with a descent and climb through the Sinks area.
· 50K
Race details, entry and past editions →Entry information ↗Duncan Ridge Trail
USABlairsville, Georgia
Mountain trail races using the Coosa Backcountry and Duncan Ridge trails, starting and finishing at Vogel State Park.
· 50K
Race details, entry and past editions →Entry information ↗Fall Creek 100
USASpencer, Tennessee
Trail ultras through Fall Creek Falls State Park, passing waterfalls, suspension bridges, forest paths and the lake shoreline.
· 100K / 50K
Race details, entry and past editions →Entry information ↗Fire Fest Ultra
USALogandale, Nevada
Desert trail races through the sandstone scenery of the Logandale Trail System near Valley of Fire, with Saturday and Sunday programmes.
· 100K / 50K
Race details, entry and past editions →Entry information ↗Griffith Park Trail Races
USALos Angeles, California
Hilly trail races on Griffith Park’s singletrack and fire roads, starting at the Merry-Go-Round parking area.
· 50K
Race details, entry and past editions →Entry information ↗Père Malfait Trail Race
USABastrop, Louisiana
Flat trail races following the reservoir levee at Bussey Brake, with exposed stretches and wooded sections.
· 50K
Race details, entry and past editions →Entry information ↗The Stuffed Turkey Endurance Races
USAGranger, Iowa
Looped trail races at Jester Park with rolling hills, flat stretches and an equestrian-centre base.
· 50K
Race details, entry and past editions →Entry information ↗Fifth Street Cross Black Friday 100
USAEmmaus, Pennsylvania
Black Friday running races on repeated short trail loops at the Fifth Street Cross course, alongside separate cycling events.
· 50K
Race details, entry and past editions →Entry information ↗Bosque Bigfoot Trail Runs
USAAlbuquerque, New Mexico
Trail races through Albuquerque’s riverside bosque, using singletrack and jeep roads among the cottonwoods.
· 50K
Race details, entry and past editions →Entry information ↗Colorado River Run
USACedar Creek, Texas
Trail races along the Colorado River at McKinney Roughs, with long ultras on Friday and shorter races on Saturday.
· 50K
Race details, entry and past editions →Entry information ↗Squatchy Leftovers
USAWest Orange, New Jersey
Trail races on a loop combining carriage roads and rocky singletrack in South Mountain Reservation, supporting Bigger Than The Trail.
· 50K
Race details, entry and past editions →Entry information ↗Turkey Burn Ultra
USAClermont, Florida
Thanksgiving weekend trail races through Lake Louisa State Park’s sand hills, forest and lakeside terrain.
· 50K
Race details, entry and past editions →Entry information ↗Brazos Bend 100
USANeedville, Texas
Flat trail races through Brazos Bend State Park, with looped ultras, a marathon, a half marathon and a children’s kilometre.
· 100K
Race details, entry and past editions →Entry information ↗Calero Trail Run Winter
USASan Jose, California
Winter trail races on Calero County Park’s singletrack and rolling dirt paths, with several distances from one mile to an ultra.
· 50K
Race details, entry and past editions →Entry information ↗Cloudland Canyon Trail Races
USARising Fawn, Georgia
A weekend of trail races through Cloudland Canyon, with waterfall views, steep canyon climbs and shorter Sunday options.
· 50K
Race details, entry and past editions →Entry information ↗Devil Dog Ultras
USATriangle, Virginia
Looped ultras through Prince William Forest Park, combining wooded singletrack, rolling hills and short fire-road sections.
· 100K / 50K · Entry closed
Race details, entry and past editions →HAROC Hanging Rock Challenge
USADanbury, North Carolina
Technical trail races among Hanging Rock State Park’s cliffs, waterfalls and rocky woodland paths.
· 50K
Race details, entry and past editions →Entry information ↗Isle du Bois Trail Run
USAPilot Point, Texas
Loop races on singletrack beside Lake Ray Roberts, mixing runnable stretches with rocks and roots.
· 50K
Race details, entry and past editions →Entry information ↗Jackson County Ultras
USABrownstown, Indiana
Rugged trail races in Jackson-Washington State Forest with a start and finish at PYOCA Camp and Retreat Center.
· 100K / 50K
Race details, entry and past editions →Entry information ↗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.
View full race archive (22) →