Looking for a comprehensive guide to 2015 – 2016 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.
Razorback 100 Mile Endurance Race
Razorback 50K Endurance Race
Razorback 50 Mile Endurance Race
Run for Amma 50K
Run for Amma 50 Miler
South African Addo Elephant 44 km Trail Run
South African Addo Elephant 76 km Trail Run
Tulsa Running Club Post Oak Lodge 50K Trail Run
Ultra Trail Terras do Sicó - 100 km
Cowtown Ultra Marathon
Dendy Park Urban Trail 50K
Iditarod Trail Invitational 1000 mile