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 Run the Rock, Sanders’ Saunter Charity Race and Screaming Monkey.
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.
Run the Rock
USATerrebonne, Oregon
Trail races around Smith Rock and Gray Butte, with the 50K and 25K on Saturday and the half marathon on Sunday.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Sanders’ Saunter Charity Race
USALawrence, Kansas
Charity trail races around Clinton Lake, with three distances and staggered starts from Overlook Park.
Date listed · latest organiser confirmation not yet checked.
Screaming Monkey
USAKeithville, Louisiana
Technical woodland races on the Monkey Trails surrounding a chimpanzee sanctuary, with shorter races and overnight ultras.
Date listed · latest organiser confirmation not yet checked.
Stone Mill 50 Mile Run
USAMontgomery Village, Maryland
A fifty-mile trail race starting and finishing at Stedwick Elementary School, with aid stations and intermediate cutoffs along the course.
Date listed · latest organiser confirmation not yet checked.
TARC Stone Cat Trail Festival
USAIpswich, Massachusetts
A trail festival on rolling woodland trails in Willowdale State Forest, with adult distance races and a short youth fun run.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Veterans Trail Festival
USAHookstown, Pennsylvania
A veterans charity running festival at Raccoon Creek State Park, formerly listed as Resilient Service Members Classic. The longer races use woodland…
Date listed · latest organiser confirmation not yet checked.
Wild Florida Trail Run
USAWhite Springs, Florida
Trail races along the Suwannee River, with all distances finishing at Stephen Foster Folk Culture Center State Park.
Date listed · latest organiser confirmation not yet checked.
Bold Coast Bash
USACutler, Maine
Technical coastal trail races over rocks, roots and bog bridges on a figure-eight course near the cliffs of Maine’s Bold Coast.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
HOKA Pacific Trails California by UTMB
USARancho San Fernado Rey
HOKA Pacific Trails California by UTMB — an official UTMB World Series Event.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Last Trail Standing
USAPittsburgh, Pennsylvania
Woodland trail races through Settlers Cabin Park, with the longer courses following repeated out-and-back loops.
Date listed · latest organiser confirmation not yet checked.
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.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
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.
Date listed · latest organiser confirmation not yet checked.
McNotagain Fall Trail Runs
USAPekin, Illinois
Autumn trail races on McNaughton Park’s hilly trails, using the familiar ten-mile loop in the reverse direction.
Date listed · latest organiser confirmation not yet checked.
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.
Date listed · latest organiser confirmation not yet checked.
Pass Mountain Trail Runs
USAMesa, Arizona
Desert trail races from Usery Mountain Regional Park, with longer courses exploring Pass Mountain and surrounding trail systems.
Date listed · latest organiser confirmation not yet checked.
Red Rock Canyon Ultra
USABlue Diamond, Nevada
Desert trail races through sandstone canyons, washes and Cottonwood Valley near Las Vegas, finishing in Blue Diamond.
Date listed · latest organiser confirmation not yet checked.
Rosaryville Veterans Day Trail Race
USAUpper Marlboro, Maryland
Rolling woodland trail races through Rosaryville State Park, beginning and ending at the Pavilion picnic area.
Date listed · latest organiser confirmation not yet checked.
The Forge Trail Run Festival
USALemont, Illinois
Looped trail races through the woods, gravel paths and historic quarries around The Forge and the I&M Canal.
Date listed · latest organiser confirmation not yet checked.
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.
Date listed · latest organiser confirmation not yet checked.
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.
Date listed · latest organiser confirmation not yet checked.
Austin Rattler Run
USABurnet, Texas
Trail running races on the singletrack, doubletrack and ranch roads of Reveille Peak Ranch in the Texas Hill Country.
Date listed · latest organiser confirmation not yet checked.
Colorado Cold Rush Ultra
USAColorado Springs, Colorado
Trail races from Bear Creek Regional Park, with longer routes climbing historic High Drive above Colorado Springs.
Date listed · latest organiser confirmation not yet checked.
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.
Date listed · latest organiser confirmation not yet checked.
Dizzy Fifties
USAHuntsville, Alabama
Figure-eight trail races on Monte Sano, combining plateau trails with a descent and climb through the Sinks area.
Date listed · latest organiser confirmation not yet checked.
Duncan Ridge Trail
USABlairsville, Georgia
Mountain trail races using the Coosa Backcountry and Duncan Ridge trails, starting and finishing at Vogel State Park.
Date listed · latest organiser confirmation not yet checked.
Fall Creek 100
USASpencer, Tennessee
Trail ultras through Fall Creek Falls State Park, passing waterfalls, suspension bridges, forest paths and the lake shoreline.
Date listed · latest organiser confirmation not yet checked.
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.
Date listed · latest organiser confirmation not yet checked.
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.
Date listed · latest organiser confirmation not yet checked.
Père Malfait Trail Race
USABastrop, Louisiana
Flat trail races following the reservoir levee at Bussey Brake, with exposed stretches and wooded sections.
Date listed · latest organiser confirmation not yet checked.
The Stuffed Turkey Endurance Races
USAGranger, Iowa
Looped trail races at Jester Park with rolling hills, flat stretches and an equestrian-centre base.
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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