Ultramarathons in the United States
Find ultramarathons in the United States. Compare 310 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 Sanders’ Saunter Charity Race, Screaming Monkey and TARC Stone Cat Trail Festival.
Narrow your search to Texas, California and Arizona, or browse the other locations below.
341 listed events · 310 with upcoming dates
Upcoming ultramarathons
310 matching events, earliest date first. Entry availability is shown separately.
Sanders’ Saunter Charity Race
USALawrence, Kansas
Charity trail races around Clinton Lake, with three distances and staggered starts from Overlook Park.
· 50K
Race details, entry and past editions →Entry information ↗Screaming Monkey
USAKeithville, Louisiana
Technical woodland races on the Monkey Trails surrounding a chimpanzee sanctuary, with shorter races and overnight ultras.
· 100K / 50K
Race details, entry and past editions →Entry information ↗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.
· 100K · Entry closed
Race details, entry and past editions →tBunk Endurance Challenge
USALaGrange, Wisconsin
Multiple fixed-distance ultras on the Nordic Trail system in the Southern Kettle Moraine State Forest.
· 50K
Race details, entry and past editions →Entry information ↗The Crunchwrap Crawl
USAKennewick, Washington
A timed urban running challenge linking local Taco Bell restaurants, with mandatory food purchases and consumption as part of the race rules.
· 50K
Race details, entry and past editions →Entry information ↗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…
· 50K
Race details, entry and past editions →Entry information ↗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.
· 50K
Race details, entry and past editions →Entry information ↗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.
· 50K · Entry closed
Race details, entry and past editions →Mustang Marathon (Hill Country Trivium)
USAMarble Falls, Texas
Formerly Hill Country Trivium, this road running festival follows hilly country roads from Mustang Stadium and includes a youth mile.
· 50K
Race details, entry and past editions →Entry information ↗Last Trail Standing
USAPittsburgh, Pennsylvania
Woodland trail races through Settlers Cabin Park, with the longer courses following repeated out-and-back loops.
· 50K
Race details, entry and past editions →Entry information ↗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 ↗Fat Ox Endurance Runs
USAGoodyear, Arizona
Timed endurance races and fixed-distance ultras on a short concrete loop around Estrella Mountain Regional Park’s turf picnic area.
· 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 ↗Regal Beagle Ultra
USABath, Ohio
Loop races through Bath Nature Preserve and Bath Community Park, crossing woodland, wetlands and rolling hills.
· 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 (31) →