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.

3,264 races

The North Face Endurance Challenge Washington DC

50K
April 29, 2017 Race day in 5 days
USA / South Atlantic / Virginia / Algonkian Regional Park, Sterling
Ultramarathon - 50 kilometers
Trail The North Face Endurance Challenge

100 Ultra trail Vipava Valley

50 km
April 29, 2017 Race day in 5 days
Slovenia / Ajdovščina/Vipava
Ultramarathon - 50 kilometers
Trail

Altra100

50 km
April 29, 2017 Race day in 5 days
Philippines / Banaue
Ultramarathon - 50 kilometers

The North Face Endurance Challenge Washington DC

50 Mile
April 29, 2017 Race day in 5 days
USA / South Atlantic / Virginia / Algonkian Regional Park, Sterling
Ultramarathon - 50 miles
Trail The North Face Endurance Challenge

C.U.R.E Ultra's

50 Mile
April 29, 2017 Race day in 5 days
USA / Mountain Region / Colorado / Chatfield State Park, Littleton
Ultramarathon - 50 miles
Trail

Big Turtle 50 Miler and Marathon

50 Miler
April 29, 2017 Race day in 5 days
USA / East South Central / Kentucky / Morehead
Ultramarathon - 50 miles
Trail

Bretagne Ultra Trail

64 km
April 29, 2017 Race day in 5 days
France / Brittany / Morbihan / Quelven en Guern
Ultramarathon - 64 kilometers
Hilly Trail

Colonial70 Relay

April 29, 2017 Race day in 5 days
USA / South Atlantic / Virginia / Hanover County
Ultramarathon - 70 miles
Relay

Ultra Trail Muntanyes de la Costa Daurada

72 km
April 29, 2017 Race day in 5 days
Spain / Catalonia / Prades
Ultramarathon - 72 kilometers
UTMB Qualifier Trail Naturetime Events Mountain

Grand Trail Gigondas

95km relais x2
April 29, 2017 Race day in 5 days
France / Provence-Alpes-Côte d'Azur / Vaucluse / Gigondas
Ultramarathon - 95 kilometers
Trail Relay

Grand Trail Gigondas

95km relais x4
April 29, 2017 Race day in 5 days
France / Provence-Alpes-Côte d'Azur / Vaucluse / Gigondas
Ultramarathon - 95 kilometers
Trail Relay

Grand Trail Gigondas

95 km solo
April 29, 2017 Race day in 5 days
France / Provence-Alpes-Côte d'Azur / Vaucluse / Gigondas
Ultramarathon - 95 kilometers
Trail

BRRC Gunpowder Keg Ultra Trail Races

BRRC Gunpowder Keg Ultra 50K Trail Race
April 29, 2017 Race day in 5 days
USA / South Atlantic / Maryland / Gunpowder State Park
Ultramarathon - 50 kilometers
Trail

Capitol Peak 50 miler/25k

Capitol Peak 50 miler
April 29, 2017 Race day in 5 days
USA / Pacific / Washington / Olympia
Ultramarathon - 50 miles

Coastal Trail Series - Pembrokeshire

Coastal Trail Series - Pembrokeshire - Ultra
April 29, 2017 Race day in 5 days
United Kingdom / Wales / County of Pembrokeshire / Little Haven
Ultramarathon - 34 miles
UTMB Qualifier Endurance Life Trail