100K events in the United States
Find 100k events in the United States. Compare 83 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 Coyote Two Moon, Salt Flats Endurance Runs and Desert Wolf.
Narrow your search to Texas, Arizona and California, or browse the other locations below.
Compare running races by distance, date and surface, from shorter road events to trail races and ultras.
91 listed events · 83 with upcoming dates
Upcoming 100k events
83 matching events, earliest date first. Entry availability is shown separately.
Coyote Two Moon
USAOjai, California
Mountain ultras through Los Padres National Forest above Ojai.
Date listed · latest organiser confirmation not yet checked.
Salt Flats Endurance Runs
USAWendover, Utah
Ultras across the Bonneville Salt Flats and surrounding hills, with a shorter fun run.
Date listed · latest organiser confirmation not yet checked.
Desert Wolf
USAJohnson City, Texas
Trail ultras and shorter races at Flat Creek Crossing Ranch.
Date listed · latest organiser confirmation not yet checked.
Rise Sasquatch Shuffle
USAGrapeland, Texas
Loop trail races at Salmon Lake Park near Grapeland.
Date listed · latest organiser confirmation not yet checked.
Traverse City Trail Running Festival
USATraverse City, Michigan
A two-day trail-running festival on the Pere Marquette Forest trails.
Date listed · latest organiser confirmation not yet checked.
Eagle Up Ultra
USACanal Fulton, Ohio
Endurance races on a flat limestone towpath loop from St Helena Park.
Date listed · latest organiser confirmation not yet checked.
Malibu Canyon Trail Races
USAMalibu, California
Trail ultras and shorter races in Point Mugu State Park.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Ultra Trail Chattanooga by UTMB
USAChattanooga Tennessee
Ultra Trail Chattanooga by UTMB — an official UTMB World Series Event.
Date listed · latest organiser confirmation not yet checked.
Weld Your Mettle Running Festival
USAEaton, Colorado
Loop running races and timed endurance challenges near Eaton.
Date listed · latest organiser confirmation not yet checked.
Kaniksu Trail Runs
USAFrater Lake, Washington
Mountain trail races in the Lower Selkirk Mountains from Frater Lake.
Date listed · latest organiser confirmation not yet checked.
Denali Ultras
USAAlpine Creek, Alaska
An endurance run along the Denali Highway from Alpine Creek Lodge towards Cantwell.
Date listed · latest organiser confirmation not yet checked.
Silverheels Trail Runs
USAComo, Colorado
High-altitude trail and dirt-road races around Como and the South Park Valley.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Siskiyou Out Back Trail Runs
USAAshland, Oregon
Mountain trail races around Ashland and the Siskiyou Crest.
Date listed · latest organiser confirmation not yet checked.
Vero Beach Octopus Ultra
USAVero Beach, Florida
Ultras through the exposed and shaded trails around Vero Beach.
Date listed · latest organiser confirmation not yet checked.
Rise in the Pines
USASmithville, Texas
Loop trail races through the pine woods of Rocky Hill Ranch.
Date listed · latest organiser confirmation not yet checked.
Lost Sierra Endurance Race
USADownieville, California
Mountain trail races through the northern Sierra Nevada around Downieville.
Date listed · latest organiser confirmation not yet checked.
Badger Trail Races by Ten Junk Miles Racing
USABelleville, Wisconsin
Rail-trail races on the Badger State and Jane Addams trails.
Date listed · latest organiser confirmation not yet checked.
Olympic Mountains Trail Races
USAQuilcene, Washington
Mountain trail races through the Olympic National Forest near Quilcene.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Shawnee Hills Trail Races
USAOzark, Illinois
Technical trail ultras through the sandstone hills and forests around Camp Ondessonk.
Date listed · latest organiser confirmation not yet checked.
Wildcat Ultras
USAPensacola, Florida
Ultras on a flat grass and dirt loop at the Escambia County Equestrian Center.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Pine Creek Challenge
USAWellsboro, Pennsylvania
Out-and-back endurance races on the Pine Creek Rail Trail.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Grindstone Trail Running Festival
USANatural Chimneys Park, VA
Grindstone Trail Running Festival — an official UTMB World Series Event.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Sangre de Cristo Trail Festival
USAWestcliffe, Colorado
A mountain trail festival near Westcliffe with ultras on Saturday and shorter races on Sunday.
· Status TBC
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.
View full race archive (8) →