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.

3,353 races

Squaw Peak 50 Mile Trail Run

June 03, 2017 The race has already taken place.
USA / Mountain Region / Utah / Vivian Park
Ultramarathon
Trail Mountain

The Calderdale Way Ultra Races

June 03, 2017 The race has already taken place.
United Kingdom / England / Calderdale / Todmorden
Ultramarathon

The Calderdale Way Ultra Races

June 03, 2017 The race has already taken place.
United Kingdom / England / Calderdale / Todmorden
Ultramarathon

The Loco Go Big or Go Home Challenge

June 03, 2017 The race has already taken place.
USA / Pacific / California / Butte Meadows
Ultramarathon

The Omen 66.6

June 03, 2017 The race has already taken place.
United Kingdom / England / Surrey / Guildford
Ultramarathon
Hilly Trail

Trail de Minuit

June 03, 2017 The race has already taken place.
Réunion / La possession
Ultramarathon
Trail

Trail de la Chaussée des Géants

June 03, 2017 The race has already taken place.
France / Rhône-Alpes / Ardèche / Thueyts
Ultramarathon
Trail Mountain UTMB Qualifier

Trail du Gypaète

June 03, 2017 The race has already taken place.
France / Rhône-Alpes / Haute-Savoie / Nancy sur Cluses
Ultramarathon
UTMB Qualifier Mountain

Trail les Grands 20 de Bourgueil

June 03, 2017 The race has already taken place.
France / Centre / Indre-et-Loire / Bourgueil
Ultramarathon
Trail

Tullaroan Marathon,including Ultra,Full,Half Marathon,10K and 5K

June 03, 2017 The race has already taken place.
Ireland / Leinster / Kilkenny / Kilkenny
Ultramarathon
Walk Road Running

Ultimate Direction Dirty 30

June 03, 2017 The race has already taken place.
USA / Mountain Region / Colorado / Golden Gate Canyon State Park
Ultramarathon
Charity Trail Mountain

Ultimate Direction Dirty 30 Trail Run

June 03, 2017 The race has already taken place.
USA / Mountain Region / Colorado / Golden Gate Canyon SP, Black Hawk
Ultramarathon
Trail
Refine by