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.

3,343 races

Old Ghost Ultra Marathon

February 24, 2018 Race day in 7 months
New Zealand / Westport
Ultramarathon
Trail Mountain Relay

The Hillary Trail Race

February 24, 2018 Race day in 7 months
New Zealand / Muriwai
Ultramarathon
Hilly Trail

Tulsa Running Club Post Oak Lodge Challenge

February 24, 2018 Race day in 7 months
USA / West South Central / Oklahoma / Tulsa
Ultramarathon
Trail

Cowtown Marathon

February 25, 2018 Race day in 7 months
USA / West South Central / Texas / Fort Worth
Ultramarathon
Road Running

St Peters Way Ultra

February 25, 2018 Race day in 7 months
United Kingdom / England / Essex / Chipping Ongar
Ultramarathon
Trail Challenge Running UTMB Qualifier

Conquer the Rock

March 03, 2018 Race day in 7 months
USA / South Atlantic / South Carolina / Pickens
Ultramarathon

Green Man Ultra

March 03, 2018 Race day in 7 months
United Kingdom / Bihar / Long Ashton, Bristol
Ultramarathon
Ultra Running Ltd

Green Man Ultra

March 03, 2018 Race day in 7 months
United Kingdom / Bihar / Long Ashton, Bristol
Ultramarathon
Ultra Running Ltd

Seneca Creek Greenway Trail Marathon & 50K

March 03, 2018 Race day in 7 months
USA / South Atlantic / Maryland / Damascus
Ultramarathon
Interview

Škraping Pirates

March 03, 2018 Race day in 7 months
Croatia / Tkon, Island Pašman
Ultramarathon
Trail

Land Between The Lakes Trail Runs

March 10, 2018 Race day in 8 months
USA / East South Central / Kentucky / Grand Rivers
Ultramarathon
Trail

Land Between The Lakes Trail Runs

March 10, 2018 Race day in 8 months
USA / East South Central / Kentucky / Grand Rivers
Ultramarathon
Trail
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