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 Bandera Endurance Trail Race, H9 Fierce Dragon and Coldwater Hundred.
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.
Bandera Endurance Trail Race
USABandera, Texas
A weekend of rugged trail races through the Texas Hill Country.
Date listed · latest organiser confirmation not yet checked.
H9 Fierce Dragon
USABlairsville, Georgia
Mountain ultras and shorter trail races based at Vogel State Park.
Date listed · latest organiser confirmation not yet checked.
Coldwater Hundred
USAGoodyear, Arizona
Desert trail races through the foothills of the Sierra Estrella mountains.
Date listed · latest organiser confirmation not yet checked.
The Shippey
USAHigh Ridge, Missouri
A weekend of winter trail races at Beaumont Scout Reservation.
Date listed · latest organiser confirmation not yet checked.
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.
Jackpot Ultras
USAHenderson, Nevada
Loop races around Cornerstone Park.
· Status TBC
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.
Lake Vian Hilltop Run
USAVian, Oklahoma
Looped races on paved paths and dirt trails overlooking Lake Vian.
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.
The Pistol
USAAlcoa, Tennessee
Ultras and shorter races on the Alcoa greenway loop.
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.
Blackbeard’s Revenge 100 Ultra
USACorolla, North Carolina
Outer Banks ultra races with separate 100-mile and 100-kilometre starts.
· Status TBC
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.
Jack Bristol Lake Waramaug Ultra Races
USAKent, Connecticut
Road ultras around scenic Lake Waramaug.
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) →