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

PPC Matopos 33 Miler

April 01, 2017 The race has already taken place.
Zimbabwe / Matobo National Park
Ultramarathon
Relay

PPC Matopos 33 Miler

April 01, 2017 The race has already taken place.
Zimbabwe / Matobo National Park
Ultramarathon

St. Croix Scenic 50

January 22, 2017 The race has already taken place.
Virgin Islands (USA) / Christiansted
Ultramarathon

St. Croix Scenic 50

January 22, 2017 The race has already taken place.
Virgin Islands (USA) / Christiansted
Ultramarathon
Relay

Vietnam Mountain Marathon

September 23, 2017 Race day in about 2 months
Vietnam / Sa pa
Ultramarathon
UTMB Qualifier Hilly Charity Package tour Trail Mountain Extreme

Vietnam Victory Challenge Trail Run

No race in 2017
Vietnam / Da Lat
Ultramarathon
Trail

Tamdao Mountain Trail

June 24, 2017 The race has already taken place.
Vietnam / Tam Đảo
Ultramarathon
Trail Mountain

Vietnam Mountain Marathon

September 23, 2017 Race day in about 2 months
Vietnam / Sa pa
Ultramarathon
UTMB Qualifier Hilly Charity Package tour Trail Mountain Extreme

Ultra Laguna de Urao

February 04, 2017 The race has already taken place.
Venezuela / Lagunillas
Ultramarathon
Trail UTMB Qualifier

ULTRA Maratón Altas Cumbres Serranas

November 06, 2016 The race has already taken place.
Uruguay / Maldonado
Ultramarathon
Toros Eventos Deportivos Trail Relay

Trail of Dreams 100k

May 20, 2017 The race has already taken place.
United States Minor Outlying Islands / Roca
Ultramarathon
Road Running

Trail of Dreams 100k

May 20, 2017 The race has already taken place.
United States Minor Outlying Islands / Roca
Ultramarathon
Road Running Relay
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