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Ultramarathons in North America
Compare ultramarathons across North America and choose where to compete next. Compare 312 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 MCW Holmdel Classic, Naughty Hog and PhoMo 50K.
Narrow your search to United States, Canada and Mexico.
347 listed events · 312 with upcoming dates
Upcoming ultramarathons
312 matching events, earliest date first. Entry availability is shown separately.
MCW Holmdel Classic
USAHolmdel, New Jersey
Charity trail races on repeated loops through Holmdel Park, with approximate ultra, half-marathon and single-loop options.
· 50K
Race details, entry and past editions →Entry information ↗Naughty Hog
USAValley View, Texas
Looped trail races at Lake Ray Roberts’ Johnson Branch, with shorter out-and-back routes and a paved 5K.
· 100K / 50K
Race details, entry and past editions →Entry information ↗PhoMo 50K
USAPhoenix, Arizona
A self-navigated trail ultra through the rocky Phoenix Mountain Preserves, starting and finishing at Shadow Rock Church.
· 50K
Race details, entry and past editions →Entry information ↗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.
· 50K · Entry closed
Race details, entry and past editions →Mel Williams Memorial Seashore 50K
USAVirginia Beach, Virginia
A two-loop trail ultra through First Landing State Park in memory of Mel Williams.
· 50K
Race details, entry and past editions →Entry information ↗Palmetto Bluff Buffalo Run
USABluffton, South Carolina
Looped trail races at Palmetto Bluff, with three solo distances and relay options for the longer races.
· 50K
Race details, entry and past editions →Entry information ↗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.
· 50K
Race details, entry and past editions →Entry information ↗Tucson Marathon
USATucson, Arizona
Point-to-point road races through the Sonoran Desert, with a marathon, half marathon and 50K finishing in Tucson.
· 50K
Race details, entry and past editions →Entry information ↗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.
· 50K
Race details, entry and past editions →Entry information ↗Texas Double
USADallas, Texas
Two days of looped road races around Bachman Lake, with three distances available on each day.
· 50K
Race details, entry and past editions →Entry information ↗Woodside Ramble
USAWoodside, California
Trail races through the redwood forest and hills of Huddart County Park.
· 50K
Race details, entry and past editions →Entry information ↗Jupiter Ridge Sand Spur
USAJupiter, Florida
Sand-dune trail races at Jupiter Ridge, including a 30K night race.
· 50K
Race details, entry and past editions →Entry information ↗Holiday Five
USAWinter Park, Florida
Five consecutive days of low-key races on the paved Cady Way Trail, with five distances each day.
· 50K
Race details, entry and past editions →Entry information ↗Across the Years
USAPeoria, Arizona
Fixed-time and fixed-distance running races on a loop at Peoria Sports Complex.
· 100K
Race details, entry and past editions →Entry information ↗Go Big
USAVolcano, Hawaii
Long-distance road races across Hawaii’s Big Island, starting in Volcano.
· 50K
Race details, entry and past editions →Entry information ↗Recover From the Holidays 50K
USAHuntsville, Alabama
A low-key 50K on rolling grass loops in Huntsville.
· 50K
Race details, entry and past editions →Entry information ↗Run Undead Ultra Trail Party
USAPelham, Alabama
New Year trail races on a five-mile loop at Oak Mountain State Park.
· 100K / 50K
Race details, entry and past editions →Entry information ↗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.
· 100K / 50K
Race details, entry and past editions →Entry information ↗Croom Zoom
USABrooksville, Florida
Trail races through the oak hammocks and shaded terrain of Croom Park.
· 50K
Race details, entry and past editions →Entry information ↗Hacienda Hills Trail Run – Winter
USASan Jose, California
Winter trail races through the hills of Almaden Quicksilver County Park.
· 50K
Race details, entry and past editions →Entry information ↗Willis River
USACumberland, Virginia
Low-key trail races through Bear Creek Lake State Park and the Willis River trails.
· 50K
Race details, entry and past editions →Entry information ↗Angela Ivory Memorial Runs
USAFelton, Delaware
Community-supported distance and timed races on the trails around Killens Pond.
· 50K
Race details, entry and past editions →Entry information ↗Bandera Endurance Trail Race
USABandera, Texas
A weekend of rugged trail races through the Texas Hill Country.
· 100K / 50K
Race details, entry and past editions →Entry information ↗Frosty Fifty Trail Races
USAWinston-Salem, North Carolina
Trail races on the packed dirt and gravel paths around Salem Lake, with a Friday night 5K.
· 50K
Race details, entry and past editions →Entry information ↗Frozen Gnome
USACrystal Lake, Illinois
Winter trail races on a challenging 10K loop through Veteran Acres and Sterne’s Woods.
· 50K
Race details, entry and past editions →Entry information ↗Frozen Sasquatch
USACharleston, West Virginia
Winter trail races through Kanawha State Forest.
· 50K
Race details, entry and past editions →Entry information ↗Frozen: H3
USABethera, South Carolina
Winter trail races on the forest paths and dirt roads of the Jericho Horse Trail.
· 50K
Race details, entry and past editions →Entry information ↗Great Scorpion Trail Run
USAMeridian, Mississippi
Trail races on the singletrack and jeep trails of Bonita Lakes Park.
· 50K
Race details, entry and past editions →Entry information ↗No Hands Trail Run
USAAuburn, California
Trail races in the American River canyon near Auburn.
· 50K
Race details, entry and past editions →Entry information ↗River Ranch Resolution Run
USALiberty Hill, Texas
New Year trail races at River Ranch County Park, with distances for adults and children.
· 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.
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