Explore by location
Road 100k events around the world
Build your racing calendar, close to home or further afield. Compare 12 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 Day of the Dead Running Series, Sekinchan Ultra and Fat Ox Endurance Runs.
Start with a continent, including Europe, North America and Asia.
Compare running races by distance, date and surface, from shorter road events to trail races and ultras.
16 listed events · 12 with upcoming dates
Upcoming 100k events
12 matching events, earliest date first. Entry availability is shown separately.
Day of the Dead Running Series
USALas Cruces, New Mexico
Two days of running beside the Rio Grande, with distances from 5K to ultra and optional early starts for longer races.
Date listed · latest organiser confirmation not yet checked.
Sekinchan Ultra
MASSekinchan, Selangor
Sekinchan Ultra: road running in Sekinchan, Malaysia.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
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.
Date listed · latest organiser confirmation not yet checked.
Route 68 Ultra
MASGombak, Selangor
Route 68 Ultra: road running in Gombak, Malaysia.
Date listed · latest organiser confirmation not yet checked.
Pierewaai ULTRA Trail 70km en 100km
NEDHoek van Holland, Netherlands
Pierewaai ULTRA Trail 70km en 100km in Hoek van Holland, with every timed public running distance supported by its organiser or authorised registration…
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.
The Pistol
USAAlcoa, Tennessee
Ultras and shorter races on the Alcoa greenway loop.
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.
NI & Ulster 50K / 100K Championships
NIRBelfast, Antrim
NI & Ulster 50K / 100K Championships — 100K, 50K.
· Status TBC
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.
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.
Tralee 100K Ultra Marathon
IRLTralee, Kerry
Tralee 100K Ultra Marathon — 100K.
· 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.
100 km de Millau
FRAMillau, Occitanie
100 km de Millau in Millau, with every verified timed running distance published separately.
Next date not listed
Race guide and recorded editions →Campeonato de España de 50K y 100K
ESPMálaga, Spain
Campeonato de España de 50K y 100K in Málaga, with every verified timed running distance published separately.
Next date not listed
Race guide and recorded editions →IAU 100K World Championships
ESPLos Alcázares, Spain
IAU 100K World Championships in Los Alcázares, with every verified timed running distance published separately.
Next date not listed
Race guide and recorded editions →Run Winschoten
NEDWinschoten, Netherlands
Run Winschoten in Winschoten, with every timed public running distance supported by its organiser or authorised registration source.
Next date not listed
Race guide and recorded editions →Choosing a race away from home
The unfiltered upcoming calendar includes events in Alcoa (1), Alpine Creek (1), Belfast (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about 100k events worldwide
What should I check before a running event in World?
Choose your distance, then check the route, elevation, cut-off time and entry conditions in the organiser’s race guide.
Which road 100k events are coming up in the world?
Day of the Dead Running Series is listed for 24 October 2026. Sekinchan Ultra is listed for 24 October 2026 (entry closed). Fat Ox Endurance Runs is listed for 21 November 2026. Check the race guide and organiser’s latest information before making plans.
Where can I find race entry details for the world?
Follow the link from the race guide to the organiser or entry provider, where one is available. Check the entry deadline, eligibility and current availability there. A listed race date does not necessarily mean entries are still open.
Why has a race moved out of the upcoming calendar?
Once its listed dates have passed, a race moves to the past-editions view unless another upcoming edition is recorded. Cancelled events also leave the upcoming list. The race guide stays available, and the event returns when a new date is added.