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.

3,270 races

Trail Terras do Sicó

50 km
February 26, 2017 Race day in 1 day
Portugal / Condeixa-a-Nova
Ultramarathon - 50 kilometers
Trail

Cowtown Marathon

50K Ultra Marathon presented by Miller Lite
February 26, 2017 Race day in 1 day
USA / West South Central / Texas / Fort Worth
Ultramarathon - 50 kilometers
Road Running

Columbia Trails Masters

Columbia Trails Masters - 50K
February 26, 2017 Race day in 1 day
Thailand / Pattaya
Ultramarathon - 50 kilometers
Trail

Davao50 Ultramarathon

February 26, 2017 Race day in 1 day
Philippines / Davao
Ultramarathon - 50 kilometers
Hilly

Iditarod Trail Invitational

Iditarod Trail Invitational 1000 mile
February 26, 2017 Race day in 1 day
USA / Pacific / Alaska / Anchorage
Ultramarathon - 1000 miles
UTMB Qualifier Invitation only Trail Snow

Iditarod Trail Invitational

Iditarod Trail Invitational 350 mile
February 26, 2017 Race day in 1 day
USA / Pacific / Alaska / Anchorage
Ultramarathon - 350 miles
UTMB Qualifier Invitation only Trail Snow

Lord Hill

Lord Hill 50 Km
February 26, 2017 Race day in 1 day
USA / Pacific / Washington / Snohomish
Ultramarathon - 50 kilometers
Evergreen Trail Runs Trail

Off the Beaten Track

February 26, 2017 Race day in 1 day
Cayman Islands / Grand Cayman
Ultramarathon - 50 kilometers
Walk Charity Trail Relay

Olde Girdled Grit 50K

Olde Girdled Grit 50K
February 26, 2017 Race day in 1 day
USA / East North Central / Ohio / Concord Township
Ultramarathon - 50 kilometers

Rouge-Orleans Ultramarathon & Team Relay

February 26, 2017 Race day in 1 day
USA / West South Central / Louisiana / Baton Rouge
Ultramarathon - 126.200 miles
Relay

St Peters Way Ultra

February 26, 2017 Race day in 1 day
United Kingdom / England / Essex / Chipping Ongar
Ultramarathon - 45 miles
UTMB Qualifier Trail Challenge Running

Terre di Siena Ultramarathon

Terre di Siena 50 km
February 26, 2017 Race day in 1 day
Italy / Tuscany / Sienna
Ultramarathon - 50 kilometers

Ultra-Trail des Côtes d'Armor

Trail des Douaniers
February 26, 2017 Race day in 1 day
France / Brittany / Côtes-d'Armor / Lannion
Ultramarathon - 50 kilometers
Trail Relay

Ultra-Trail des Côtes d'Armor

Ultra Trail
February 26, 2017 Race day in 1 day
France / Brittany / Côtes-d'Armor / Lannion
Ultramarathon - 80 kilometers
Trail Relay

Ultra Trail Sierras del Bandolero

150 km
March 03, 2017 Race day in 6 days
Spain / Andalusia / Prado del Re, Cádiz
Ultramarathon - 150 kilometers
UTMB Qualifier Trail Western States Qualifier Mountain