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.

3,271 races

Scotiabank Calgary Marathon

50K Ultra
May 28, 2017 Race day in 1 day
Canada / Alberta / Calgary
Ultramarathon - 50 kilometers
Charity Road Running

Rond' Yonne

61 km
May 28, 2017 To be confirmed Race day in 1 day
France / Burgundy / Yonne / Domats
Ultramarathon - 61 kilometers
Relay

Trail du Hautacam

62 km
May 28, 2017 Race day in 1 day
France / Midi-Pyrénées / Hautes-Pyrénées / Beaucens
Ultramarathon - 62 kilometers
Trail Mountain

Alpago EcoMarathon

Alpago EcoMarathon
May 28, 2017 Race day in 1 day
Italy / Veneto / Puos d'Alpago
Ultramarathon - 50 kilometers
Trail Mountain

Scotiabank Calgary Marathon

Confederation 150K Relay
May 28, 2017 Race day in 1 day
Canada / Alberta / Calgary
Ultramarathon - 150 kilometers
Charity Road Running Relay

Gran Trail Rensen

Gran Trail Rensen
May 28, 2017 Race day in 1 day
Italy / Liguria / Arenzano
Ultramarathon - 62 kilometers
UTMB Qualifier Trail Mountain

Pineland Farms Trail Running Festival

Pineland Farms 50K Trail
May 28, 2017 Race day in 1 day
USA / New England / Maine / New Gloucester
Ultramarathon - 50 kilometers
Hilly Trail

Pineland Farms Trail Running Festival

Pineland Farms 50 Mile Trail
May 28, 2017 Race day in 1 day
USA / New England / Maine / New Gloucester
Ultramarathon - 50 miles
Hilly Trail

Wyoming Marathon Races

Rocky Mountain 50k
May 28, 2017 Race day in 1 day
USA / Mountain Region / Wyoming / Laramie
Ultramarathon - 50 kilometers
Charity Road Running

Severn Challenge

Severn Way Ultra
May 28, 2017 Race day in 1 day
United Kingdom / England / Worcestershire / Holt Castle
Ultramarathon - 58 miles
Road Running Ultra Running Ltd

Maxi Race Trail du Lac d'Annecy

Technica Maxi Race
May 28, 2017 Race day in 1 day
France / Rhône-Alpes / Haute-Savoie / Annecy-le-Vieux
Ultramarathon - 85 kilometers
UTMB Qualifier Trail Mountain

Trail Alta Val Nure

Trail Alta Val Nure 60 km
May 28, 2017 Race day in 1 day
Italy / Emilia-Romagna / Bettola
Ultramarathon - 60 kilometers
UTMB Qualifier Trail

Weald Challenge 50km Ultra Trail

Weald Challenge 50 km Ultra Trail
May 28, 2017 Race day in 1 day
United Kingdom / England / East Sussex / Chiddingly
Ultramarathon - 50 kilometers
Trail

Severn Challenge

Bristol Severn
May 29, 2017 Race day in 2 days
United Kingdom / England / Worcestershire / Holt Castle
Ultramarathon - 27 miles
Road Running Ultra Running Ltd

Tenzing Hillary Everest Marathon

Mount Everest Extreme Ultra Marathon
May 29, 2017 Race day in 2 days
Nepal / Mount Everest
Ultramarathon - 60 kilometers
Trail Mountain Extreme