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.

3,272 races

Pigtails Challenge

Pigtails 150 Mile Challenge
May 26, 2017 Race day in 2 days
USA / Pacific / Washington / Lake Youngs Watershed
Ultramarathon - 150 miles
Trail

Severn Challenge

Severn Plod Ultra
May 26, 2017 Race day in 2 days
United Kingdom / England / Worcestershire / Holt Castle
Ultramarathon - 45 miles
Road Running Ultra Running Ltd

Volvic Volcanic Experience

Trail experience Chaîne des Puys
May 26, 2017 Race day in 2 days
France / Auvergne / Puy-de-Dôme / Volvic
Ultramarathon - 75 kilometers

Ultimate Race

Ultimate Race
May 26, 2017 Race day in 2 days
France / Provence-Alpes-Côte d'Azur / Bouches-du-Rhône / Marseille
Ultramarathon - 131 kilometers
UTMB Qualifier Hilly Trail

Ultimate Race

Ultimate Race Relais
May 26, 2017 Race day in 2 days
France / Provence-Alpes-Côte d'Azur / Bouches-du-Rhône / Marseille
Ultramarathon - 131 kilometers
Hilly Trail Relay

100km del Passatore

May 27, 2017 Race day in 3 days
Italy / Tuscany / Florence
Ultramarathon - 100 kilometers

100 km de Vendée

100 km de Vendée
May 27, 2017 Race day in 3 days
France / Pays de la Loire / Vendée / Chavagnes en Paillers
Ultramarathon - 100 kilometers

Sulphur Springs Trail Race

100 Mile
May 27, 2017 Race day in 3 days
Canada / Ontario / Ancaster
Ultramarathon - 100 miles
Trail Relay

Trail des Pyramides Noires

105 km
May 27, 2017 Race day in 3 days
France / Nord-Pas-de-Calais / Pas-de-Calais / Oignies
Ultramarathon - 105 kilometers
UTMB Qualifier Hilly Trail

Ultra Trail Stara Planina

108 km
May 27, 2017 Race day in 3 days
Serbia / Babin Zub
Ultramarathon - 108 kilometers
UTMB Qualifier Trail Mountain

Sulphur Springs Trail Race

50K
May 27, 2017 Race day in 3 days
Canada / Ontario / Ancaster
Ultramarathon - 50 kilometers
Trail

Fiambala Desert Trail

50K
May 27, 2017 Race day in 3 days
Argentina / Fiambala
Ultramarathon - 50 kilometers
Hilly Desert Trail

Trail des Pyramides Noires

50 km
May 27, 2017 Race day in 3 days
France / Nord-Pas-de-Calais / Pas-de-Calais / Oignies
Ultramarathon - 50 kilometers
Hilly Trail

The Beast Trail, 50, 25, 12 km

50 km of Wild Pig
May 27, 2017 Race day in 3 days
Taiwan / Taipei
Ultramarathon - 50 kilometers
Trail

Run For Water Trail Run

50k Trail Run
May 27, 2017 Race day in 3 days
Canada / British Columbia / Sumas Peak
Ultramarathon - 50 kilometers
Charity Trail