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.

3,270 races

Roller Coaster Run

Roller Coaster Run 43km
February 25, 2017 Race day in 1 day
Australia / Victoria / Mount Dandenong
Ultramarathon - 43 kilometers
Hilly Trail Mountain

Salmon Falls 50K

February 25, 2017 Race day in 1 day
USA / Pacific / California / Pilot Hill
Ultramarathon - 50 kilometers
Trail

Soggy Bottom Endurance Ultra

Soggy Bottom 100 Miler
February 25, 2017 Race day in 1 day
USA / West North Central / Missouri / Sparta
Ultramarathon - 100 miles
Trail Relay

Soggy Bottom Endurance Ultra

Soggy Bottom 100 Mile Relay
February 25, 2017 Race day in 1 day
USA / West North Central / Missouri / Sparta
Ultramarathon - 100 miles
Trail Relay

Soggy Bottom Endurance Ultra

Soggy Bottom 40 Miler
February 25, 2017 Race day in 1 day
USA / West North Central / Missouri / Sparta
Ultramarathon - 40 miles
Trail Relay

Soggy Bottom Endurance Ultra

Soggy Bottom 40 Mile Relay
February 25, 2017 Race day in 1 day
USA / West North Central / Missouri / Sparta
Ultramarathon - 40 miles
Trail Relay

Sycamore 100k

February 25, 2017 Race day in 1 day
USA / Pacific / California / Poway
Ultramarathon - 100 kilometers
Trail Relay

The Hillary Trail Race

The Hillary 80 km Trail Race
February 25, 2017 Race day in 1 day
New Zealand / Muriwai
Ultramarathon - 80 kilometers
Hilly Trail

Reverse Ring

February 25, 2017 Race day in 1 day
USA / South Atlantic / Virginia / Front Royal
Ultramarathon - 71 miles
Trail

North Face Transgrancanaria

Transgrancanaria - Advanced
February 25, 2017 Race day in 1 day
Spain / Canary Islands / Las Palmas
Ultramarathon - 84 kilometers
UTMB Qualifier Trail Spain Ultra Cup Mountain

North Face Transgrancanaria

Transgrancanaria - Maratón
February 25, 2017 Race day in 1 day
Spain / Canary Islands / Las Palmas
Ultramarathon - 44 kilometers
Trail Mountain

Tulsa Running Club Post Oak Lodge Challenge

Tulsa Running Club Post Oak Lodge 50K Trail Run
February 25, 2017 Race day in 1 day
USA / West South Central / Oklahoma / Tulsa
Ultramarathon - 50 kilometers
Trail

Coastal Trail Series - Northumberland

Ultra
February 25, 2017 Race day in 1 day
United Kingdom / England / Northumberland / Bamburgh
Ultramarathon - 34 miles
UTMB Qualifier Endurance Life Trail

Ultra Adventures Antelope Canyon

Ultra Adventures Antelope Canyon 50 Mile
February 25, 2017 Race day in 1 day
USA / Mountain Region / Arizona / Antelope Canyon
Ultramarathon - 50 miles
Hilly Trail Ultra Adventures

Ultra Adventures Antelope Canyon

Ultra Adventures Antelope Canyon 55K
February 25, 2017 Race day in 1 day
USA / Mountain Region / Arizona / Antelope Canyon
Ultramarathon - 55 kilometers
Hilly Trail Ultra Adventures