Trail 100k events in the United States
Find trail 100k events in the United States. Compare 73 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 Whitewalker Ultra, Big Bend Ultra and Cowboy Yeti.
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.
78 listed events · 73 with upcoming dates
Upcoming 100k events
73 matching events, earliest date first. Entry availability is shown separately.
Whitewalker Ultra
USAPalmyra, Wisconsin
Winter trail ultrarunning on the Ice Age Trail from Emma Carlin Trailhead.
Date listed · latest organiser confirmation not yet checked.
Big Bend Ultra
USATerlingua, Texas
Desert trail races through Big Bend Ranch State Park.
Date listed · latest organiser confirmation not yet checked.
Cowboy Yeti
USABastrop, Texas
Trail races through Bastrop State Park.
Date listed · latest organiser confirmation not yet checked.
North Texas Ultra
USAJacksboro, Texas
Trail ultras and shorter races on the fine-gravel Lost Creek Reservoir State Trailway.
Date listed · latest organiser confirmation not yet checked.
Black Canyon Ultras — 100K
USASpring Valley, Arizona
Historical results collected from the UTMB Index.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Iron Heart Ultra
USASt. James, Missouri
Trail ultras and shorter races at Maramec Spring Park.
Date listed · latest organiser confirmation not yet checked.
Red Dirt Ultra
USAProvencal, Louisiana
Trail ultras through the Sandstone and Caroline Dormon trail systems.
Date listed · latest organiser confirmation not yet checked.
Grandmaster Ultras
USAMesquite area, Arizona
Desert trail ultras for runners aged 50 and over on the Arizona Strip near Mesquite.
Date listed · latest organiser confirmation not yet checked.
Will Rogers Ultra
USAPacific Palisades, California
Timed and fixed-distance trail races on a loop at Will Rogers State Historic Park.
Date listed · latest organiser confirmation not yet checked.
Crazy Desert Trail Race
USASan Angelo, Texas
A weekend of desert trail races at San Angelo State Park.
Date listed · latest organiser confirmation not yet checked.
Sycamore Canyon Ultras
USAPoway, California
Looped trail ultras and a half marathon at Sycamore Canyon Preserve.
Date listed · latest organiser confirmation not yet checked.
Thunder Kiss
USASterrett, Alabama
Trail ultras and a twenty-mile race on the ridges of Double Oak Park.
Date listed · latest organiser confirmation not yet checked.
Leatherwood Ultras
USAFerguson, North Carolina
Hilly trail ultras on private trails in the Leatherwood Mountains.
Date listed · latest organiser confirmation not yet checked.
Desert Peak Ultra
USAOracle, Arizona
Mountain and desert trail ultras near Oracle and Mount Lemmon.
Date listed · latest organiser confirmation not yet checked.
Desert RATS Trail Running Festival by UTMB
USAFruita, Colorado
Desert RATS Trail Running Festival by UTMB — an official UTMB World Series Event.
Date listed · latest organiser confirmation not yet checked.
Ozark Foothills Endurance Runs
USAWildwood, Missouri
Trail races through the hills of Wildwood, with Friday night and Sunday options.
Date listed · latest organiser confirmation not yet checked.
Zion Ultras
USAApple Valley, Utah
Desert trail races around Apple Valley near Zion National Park.
Date listed · latest organiser confirmation not yet checked.
Leona Divide
USALake Hughes, California
Mountain trail ultras and a 30K starting in Lake Hughes.
Date listed · latest organiser confirmation not yet checked.
Lumberjack 100
USAPort Gamble, Washington
Loop trail ultras through the Port Gamble uplands.
Date listed · latest organiser confirmation not yet checked.
Stillhouse 100K
USASoddy-Daisy, Tennessee
Trail ultramarathon in the Soddy-Daisy area.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
The Canyons Endurance Runs™ by UTMB®
USAAuburn, California
The Canyons Endurance Runs™ by UTMB® — an official UTMB World Series Event.
Date listed · latest organiser confirmation not yet checked.
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.
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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