Explore by location
Trail 100k events around the world
Build your racing calendar, close to home or further afield. Compare 102 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.
Start with a continent, including North America, Europe and Oceania, or browse the other locations below.
Compare running races by distance, date and surface, from shorter road events to trail races and ultras.
112 listed events · 102 with upcoming dates · 1 upcoming featured races
Upcoming 100k events
102 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.
Jurassic Coast Ultra Challenge
ENGCorfe Castle, Dorset
Jurassic Coast Ultra Challenge in Corfe Castle.
Date listed · latest organiser confirmation not yet checked.
London 2 Brighton Ultra Challenge
ENGRichmond, Greater London
London 2 Brighton Ultra Challenge in Richmond.
Date listed · latest organiser confirmation not yet checked.
Mountain Ultra Trail by UTMB
RSAGeorge
Mountain Ultra Trail by UTMB — an official UTMB World Series Event.
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.
Lake District Ultra Challenge
ENGKendal, Cumbria
Lake District Ultra Challenge in Kendal.
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.
Cotswold Way Ultra Challenge
ENGCirencester, Gloucestershire
Cotswold Way Ultra Challenge in Cirencester.
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.
Race to the King
ENGWest Dean, West Sussex
Race to the King — a verified UTMB Index race for the 2026 edition.
Date listed · latest organiser confirmation not yet checked.
North Yorks Ultra Challenge
ENGScarborough, North Yorkshire
North Yorks Ultra Challenge in Scarborough.
Date listed · latest organiser confirmation not yet checked.
Ultra Trail Whistler by UTMB
CANCreekside Plaza
Ultra Trail Whistler by UTMB — an official UTMB World Series Event.
Date listed · latest organiser confirmation not yet checked.
Ham & Lyme Summer
ENGHam Hill / Lyme Regis, Somerset / Dorset
Ham & Lyme Summer in Ham Hill / Lyme Regis.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Peak District Challenge
ENGBakewell, Derbyshire
Peak District Challenge — a verified UTMB Index race for the 2026 edition.
Date listed · latest organiser confirmation not yet checked.
Serpent Trail Race
ENGPetersfield, Hampshire
Serpent Trail Race in Petersfield.
· Status TBC
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.
Lakeland Trails Ultra & Ambleside Trail Runs
ENGAmbleside, Cumbria
Lakeland Trails Ultra & Ambleside Trail Runs in Ambleside.
Date listed · latest organiser confirmation not yet checked.
Race to the Stones
ENGLewknor, Oxfordshire
Race to the Stones in Lewknor.
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.
Gower Peninsula Ultra Challenge
WALPenrice, Swansea
Gower Peninsula Ultra Challenge in Penrice.
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.
Beacons Way Ultra 100KM
WALTalybont-on-Usk, Powys
Beacons Way Ultra 100KM in Talybont-on-Usk.
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.
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 (10) →