Worldwide 2017 – 2018 Ultramarathon Calendar

Looking for a comprehensive guide to 2017 – 2018 ultramarathons organized around the world? You can browse our list of half marathons or filter down the selection to a specific location, month or type of race. You’ll find iconic 100 milers, shorter races to test yourself in the ultra world, road races, mountain races, races in deserts. The diversity of ultra races is really amazing.

We consider any race longer than 42.195km or 26.1mi to be an ultramarathon if it is run in a single stage. If you’re looking for races that have a specific fixed duration (ex : 24hr races), you can check the X-hour race calendar. If you like races run on several stages across several days, check our Multiday race calendar

If you’re looking for new 2013 – 2014 ultramarathons to compete in, this is the place to start searching. More than 1,800 ultramarathons are listed in over 75 countries around the world.

3,304 races

Wyatt V. Courage Run

March 25, 2017 Race day in 1 day
USA / East South Central / Mississippi / Columbus
Ultramarathon - 150 miles
Relay

Ultra Adventures Monument Valley

50K
March 25, 2017 Race day in 1 day
USA / Mountain Region / Arizona / Monument Valley
Ultramarathon - 50 kilometers
Trail Ultra Adventures

The HAT Run

March 25, 2017 Race day in 1 day
USA / South Atlantic / Maryland / Havre de Grace
Ultramarathon - 50 kilometers
Hilly Trail

VALENCIA Trail Race

50K Ultra
March 25, 2017 Race day in 1 day
USA / Pacific / California / 29889, San Francisquito Canyon Road
Ultramarathon - 50 kilometers
Trail

Crêtes de Spa

55 km
March 25, 2017 Race day in 1 day
Belgium / Wallonia / Spa
Ultramarathon - 55 kilometers
Hilly Trail

Saint Joseph Trail D 2 Rivieres

March 25, 2017 Race day in 1 day
Réunion / Saint-Joseph
Ultramarathon - 62 kilometers
Trail

Palmetto70 Relay

March 25, 2017 Race day in 1 day
USA / South Atlantic / South Carolina / Cordesville
Ultramarathon - 70 miles
Relay

Behind the Rocks 50 Mile, 50K and 30 Mile

Behind the Rocks 30 Mile
March 25, 2017 Race day in 1 day
USA / Mountain Region / Utah / Moab
Ultramarathon - 30 miles
Trail

Behind the Rocks 50 Mile, 50K and 30 Mile

Behind the Rocks 50 K
March 25, 2017 Race day in 1 day
USA / Mountain Region / Utah / Moab
Ultramarathon - 50 kilometers
Trail

Behind the Rocks 50 Mile, 50K and 30 Mile

Behind the Rocks 50 Mile
March 25, 2017 Race day in 1 day
USA / Mountain Region / Utah / Moab
Ultramarathon - 50 miles
Trail

BSI Lake Balaton Supermarathon

BSI Lake Balaton Marathon+ Badacsony - Balatonfüred
March 25, 2017 Race day in 1 day
Hungary / Siófok
Ultramarathon - 43.100 kilometers
Budapest Running Races

Chester Ultra

March 25, 2017 Race day in 1 day
United Kingdom / England / Cheshire West and Chester / Chester
Ultramarathon - 50 miles
Road Running Trail

Clinton Lake Ultra

March 25, 2017 Race day in 1 day
USA / East North Central / Illinois / Dewitt
Ultramarathon - 30 miles

Fort Clinch 100

Fort Clinch 100M
March 25, 2017 Race day in 1 day
USA / South Atlantic / Florida / Fernandina Beach, Amelia Island
Ultramarathon - 100 miles
Hilly Trail

Fort Clinch 100

Fort Clinch 50M
March 25, 2017 Race day in 1 day
USA / South Atlantic / Florida / Fernandina Beach, Amelia Island
Ultramarathon - 50 miles
Hilly Trail