Worldwide 2016 – 2017 Ultramarathon Calendar

Looking for a comprehensive guide to 2016 – 2017 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.

3,153 races

100km des Etangs de Sologne

100km des Etangs de Sologne
August 27, 2016 Race day in 2 days
France / Centre / Loir-et-Cher / Theillay
Ultramarathon - 100 kilometers
Road Running

Trail Valle de Tena

4K
August 27, 2016 Race day in 2 days
Spain / Aragon / Formigales
Ultramarathon - 44 kilometers
Trail Mountain

South Coast Challenge

50 km
August 27, 2016 Race day in 2 days
United Kingdom / England / East Sussex / Eastbourne
Ultramarathon - 50 kilometers

Lean Horse Ultra-Marathon Hundred, Half Hundred, & 50K

50 km
August 27, 2016 Race day in 2 days
USA / West North Central / South Dakota / Hot Springs
Ultramarathon - 50 kilometers
Trail

100km des Etangs de Sologne

50km de la Sologne des Rivières
August 27, 2016 Race day in 2 days
France / Centre / Loir-et-Cher / Theillay
Ultramarathon - 50 kilometers
Road Running

Chefchaouen la Traversée Trail

65 km
August 27, 2016 Race day in 2 days
Morocco / Chefchaouen
Ultramarathon - 65 kilometers
Trail

Trail Valle de Tena

8K
August 27, 2016 Race day in 2 days
Spain / Aragon / Formigales
Ultramarathon - 78 kilometers
Trail Mountain

Achill Half, Full and Ultra Marathon

Achill Ultra Marathon
August 27, 2016 Race day in 2 days
Ireland / Connacht / Achill Island
Ultramarathon - 39.300 miles
Hilly Fun Road Running

Baker Trail UltraChallenge

August 27, 2016 Race day in 2 days
USA / Mid-Atlantic / Pennsylvania / Brookville
Ultramarathon - 50 miles
Trail

Bulldog 50K and 25K

Bulldog 50K Ultra
August 27, 2016 Race day in 2 days
USA / Pacific / California / Calabasas
Ultramarathon - 50 kilometers
Trail

Cascade Crest 100 Mile Endurance Run

August 27, 2016 Race day in 2 days
USA / Pacific / Washington / Easton
Ultramarathon - 100 miles
UTMB Qualifier Trail Western States Qualifier Mountain

The Castle Peak 100K

August 27, 2016 Race day in 2 days
USA / Pacific / California / Truckee
Ultramarathon - 100 kilometers
Trail

Chiltern Way Ultra

Chiltern Way Ultra 200k
August 27, 2016 Race day in 2 days
United Kingdom / England / Hertfordshire / Hemel Hemstead
Ultramarathon - 200 kilometers
Trail Challenge Running

Cimasarun

August 27, 2016 Race day in 2 days
Réunion / Hell-Bourg
Ultramarathon - 55 kilometers
Trail Randorun Ocean Indien Mountain

D'Evelyn DASH 5K/2K run/walk and carnival

D'Evelyn DASH 2K run/walk and carnival
August 27, 2016 Race day in 2 days
USA / Mountain Region / Colorado / Denver
Ultramarathon - 2000 kilometers
Fun Urban Trail Fund raising