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.

3,303 races

Taklamakan Ultramarathon

August 24, 2012 Cancelled
China / Taklamakan Desert
Ultramarathon - 100 kilometers
Package tour Desert Trail

North Face Endurance Chalenge Peru

North Face Endurance Chalenge Peru 80K
No race in 2016
Peru / Cañete
Ultramarathon - 80 kilometers
UTMB Qualifier Trail Mountain

North Face Endurance Chalenge Peru

North Face Endurance Chalenge Peru 50K
No race in 2016
Peru / Cañete
Ultramarathon - 50 kilometers
UTMB Qualifier Trail Mountain

Dizzy Daze

Dizzy Daze 50K
No race in 2016
USA / Pacific / Washington / Seattle
Ultramarathon - 50 kilometers

Dizzy Daze

Dizzy Daze 100K
No race in 2016
USA / Pacific / Washington / Seattle
Ultramarathon - 100 kilometers

Croom Trail

Croom Trail 50M Fools Run
April 04, 2015 The race has already taken place.
USA / South Atlantic / Florida / Brooksville
Ultramarathon - 50 miles
Trail

Croom Trail

Croom Trail 50K Fools Run
April 04, 2015 The race has already taken place.
USA / South Atlantic / Florida / Brooksville
Ultramarathon - 50 kilometers
Trail

Bloomington to West Lafayette (Indiana)

2 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

Bloomington to West Lafayette (Indiana)

8 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

Bloomington to West Lafayette (Indiana)

5 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

UltraTrail dei Monti Cimini

UltraTrail dei Monti Cimini
No race in 2016
Italy / Latium / Viterbo
Ultramarathon - 80 kilometers
Hilly Trail

Bloomington to West Lafayette (Indiana)

3 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

Bloomington to West Lafayette (Indiana)

7 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

Bloomington to West Lafayette (Indiana)

4 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay

Bloomington to West Lafayette (Indiana)

6 Person Team
April 11, 2015 The race has already taken place.
USA / East North Central / Indiana / Bloomington
Ultramarathon - 100 miles
Road Running Relay