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

Štefánik Trail

June 09, 2017 The race has already taken place.
Slovakia / Bratislava
Ultramarathon
UTMB Qualifier

Škraping Pirates

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

Über Drüber Marathon

May 25, 2017 The race has already taken place.
Austria / Micheldorf in Oberoesterreich
Ultramarathon
Hilly

mozart 100

June 16, 2018 Race day in 11 months
Austria / Salzburg
Ultramarathon
Walk Team Trail Relay UTMB Qualifier Western States Qualifier

mozart 100

June 16, 2018 Race day in 11 months
Austria / Salzburg
Ultramarathon
Walk Team Trail Relay UTMB Qualifier

adidas Elbrus World Race

August 05, 2017 Race day in 10 days
Russia / Mount Elbrus
Ultramarathon
Trail Mountain UTMB Qualifier

adidas Elbrus World Race

August 03, 2017 Race day in 8 days
Russia / Mount Elbrus
Ultramarathon
Trail Mountain UTMB Qualifier

Zumbro 100

April 08, 2017 The race has already taken place.
USA / West North Central / Minnesota / Zumbro Falls
Ultramarathon
Trail Night

Zumaiako Flysch Trail

June 26, 2016 The race has already taken place.
Spain / Basque Country / Zumaia
Ultramarathon

Zululand Ultra Marathon

March 19, 2017 The race has already taken place.
South Africa / Nongoma
Ultramarathon

Zion Ultras

April 21, 2017 The race has already taken place.
USA / Mountain Region / Utah / Springdale
Ultramarathon
Hilly Desert Trail Ultra Adventures

Zion Ultras

April 20, 2018 Race day in 9 months
USA / Mountain Region / Utah / Springdale
Ultramarathon
Hilly Desert Trail Ultra Adventures
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