Explore by location
Ultramarathons in North America
Compare ultramarathons across North America and choose where to compete next. Compare 390 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 Spirit of Syllamo, BMW Dallas Marathon and Mel Williams Memorial Seashore 50K.
Narrow your search to United States, Canada and Mexico.
Compare running races by distance, date and surface, from shorter road events to trail races and ultras.
478 listed events · 390 with upcoming dates
Upcoming ultramarathons
390 matching events, earliest date first. Entry availability is shown separately.
Spirit of Syllamo
USANorfork, Arkansas
Rugged ultras through the Sylamore district of the Ozark–St. Francis National Forest, starting beside the White River.
Date listed · latest organiser confirmation not yet checked.
BMW Dallas Marathon
USADallas, Texas
A December weekend of road races in downtown Dallas, from a Friday mile and junior races to the Sunday marathon, half marathon and 50K.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Mel Williams Memorial Seashore 50K
USAVirginia Beach, Virginia
A two-loop trail ultra through First Landing State Park in memory of Mel Williams.
Date listed · latest organiser confirmation not yet checked.
Palmetto Bluff Buffalo Run
USABluffton, South Carolina
Looped trail races at Palmetto Bluff, with three solo distances and relay options for the longer races.
Date listed · latest organiser confirmation not yet checked.
Star of Texas
USASpicewood, Texas
Looped road races at Pace Bend Park, listed by the organiser as the Holiday Victory Lap and currently entered as Star of Texas.
Date listed · latest organiser confirmation not yet checked.
Tucson Marathon
USATucson, Arizona
Point-to-point road races through the Sonoran Desert, with a marathon, half marathon and 50K finishing in Tucson.
Date listed · latest organiser confirmation not yet checked.
Ancient Oaks 100
USATitusville, Florida
A low-key 100-mile trail race on repeated loops through the Enchanted Forest Nature Sanctuary.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Lookout Mountain Trail Race
USALookout Mountain, Georgia
Trail races from Covenant College through the terrain around Lookout Mountain.
Date listed · latest organiser confirmation not yet checked.
Naked Nick
USALeesport, Pennsylvania
Winter trail races on the south side of Blue Marsh Lake, with one or two laps of a woodland and gravel course.
Date listed · latest organiser confirmation not yet checked.
Texas Double
USADallas, Texas
Two days of looped road races around Bachman Lake, with three distances available on each day.
Date listed · latest organiser confirmation not yet checked.
Woodside Ramble
USAWoodside, California
Trail races through the redwood forest and hills of Huddart County Park.
Date listed · latest organiser confirmation not yet checked.
Charleston Itty Bitty 50
USACharleston, South Carolina
A self-supported point-to-point 50-mile road run through Charleston and the Lowcountry to Mount Pleasant.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Boyers Furnace
USAFort Valley, Virginia
A mountain loop through the Massanutten range, passing the historic Boyer’s Furnace ruins.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Jupiter Ridge Sand Spur
USAJupiter, Florida
Sand-dune trail races at Jupiter Ridge, including a 30K night race.
Date listed · latest organiser confirmation not yet checked.
Holiday Five
USAWinter Park, Florida
Five consecutive days of low-key races on the paved Cady Way Trail, with five distances each day.
Date listed · latest organiser confirmation not yet checked.
Round the Bay Relay and Ultra
USAFort Walton Beach, Florida
A road ultra and relay around Choctawhatchee Bay, crossing coastal towns and bridges.
Date listed · latest organiser confirmation not yet checked.
Across the Years
USAPeoria, Arizona
Fixed-time and fixed-distance running races on a loop at Peoria Sports Complex.
Date listed · latest organiser confirmation not yet checked.
Go Big
USAVolcano, Hawaii
Long-distance road races across Hawaii’s Big Island, starting in Volcano.
Date listed · latest organiser confirmation not yet checked.
New Year’s One Day
USASan Jose, California
Fixed-distance and timed races on an asphalt loop at Hellyer County Park.
Date listed · latest organiser confirmation not yet checked.
Recover From the Holidays 50K
USAHuntsville, Alabama
A low-key 50K on rolling grass loops in Huntsville.
Date listed · latest organiser confirmation not yet checked.
Run Undead Ultra Trail Party
USAPelham, Alabama
New Year trail races on a five-mile loop at Oak Mountain State Park.
Date listed · latest organiser confirmation not yet checked.
Canyon of the Eagles New Year’s Trail Challenge
USABurnet, Texas
Two days of New Year trail races on the limestone bluffs around Canyon of the Eagles.
Date listed · latest organiser confirmation not yet checked.
Just Survive 125
USAHobe Sound, Florida
A bucket-supported out-and-back ultra from Hobe Sound Beach to Lake Okeechobee and back.
Date listed · latest organiser confirmation not yet checked.
Tuscobia Winter Ultra
USARice Lake, Wisconsin
Winter endurance races on the Tuscobia State Trail in northern Wisconsin.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Croom Zoom
USABrooksville, Florida
Trail races through the oak hammocks and shaded terrain of Croom Park.
Date listed · latest organiser confirmation not yet checked.
Hacienda Hills Trail Run – Winter
USASan Jose, California
Winter trail races through the hills of Almaden Quicksilver County Park.
Date listed · latest organiser confirmation not yet checked.
Wild Azalea Trail Challenge
USAAlexandria, Louisiana
Trail races through the hills and pine forest of the Wild Azalea Trail.
Date listed · latest organiser confirmation not yet checked.
Willis River
USACumberland, Virginia
Low-key trail races through Bear Creek Lake State Park and the Willis River trails.
Date listed · latest organiser confirmation not yet checked.
Frozen: H3
USABethera, South Carolina
Winter trail races on the forest paths and dirt roads of the Jericho Horse Trail.
Date listed · latest organiser confirmation not yet checked.
Angela Ivory Memorial Runs
USAFelton, Delaware
Community-supported distance and timed races on the trails around Killens Pond.
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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