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Worldwide 2015 – 2016 Ultramarathon Calendar

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.

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2,659 races

2015 Hong Kong Ultra Marathon 12 hrs

  • Asia | Hong-Kong | Pak Shek Kok Promenade
  • Ultramarathon - 12 hours
  • January 30, 2015 - 22:00
  • Road Running

2015 Hong Kong Ultra Marathon 24 hrs

  • Asia | Hong-Kong | Pak Shek Kok Promenade
  • Ultramarathon - 24 hours
  • January 30, 2015 - 11:00
  • Road Running

2015 Hong Kong Ultra Marathon 24 hrs Charity

  • Asia | Hong-Kong | Pak Shek Kok Promenade
  • Ultramarathon - 24 hours
  • January 30, 2015 - 11:00
  • Road Running

Caboolture Historical Village Dusk to Dawn 100km

  • Oceania | Australia | Queensland | Caboolture
  • Ultramarathon - 100 kilometers
  • January 31, 2015 - 18:00
  • Walk Relay

Caboolture Historical Village Dusk to Dawn 50km

  • Oceania | Australia | Queensland | Caboolture
  • Ultramarathon - 50 kilometers
  • January 31, 2015 - 18:00
  • Walk Relay

Fort Ord Trail Run 50K

  • North America | USA | Pacific | California | Salinas
  • Ultramarathon - 50 kilometers
  • January 31, 2015 - 08:30
  • Inside Trail Racing Trail

Frozen Dead Guy 50km

  • North America | USA | Colorado | Nederland
  • Ultramarathon - 50 kilometers
  • January 31, 2015 - 07:30
  • Snow Trail Mountain

Lake Youngs NUTS 50K Run

  • North America | USA | Pacific | Washington | Lake Youngs Watershed
  • Ultramarathon - 50 kilometers
  • January 31, 2015 - 07:30
  • Trail

North Carolina Fat Ass 50k

  • North America | USA | South Atlantic | North Carolina | Fort Bragg
  • Ultramarathon - 50 kilometers
  • January 31, 2015 - 08:00
  • Trail

Ordnance 100K

  • North America | USA | California | Fort Ord National Monument, Salinas
  • Ultramarathon - 100 kilometers
  • January 31, 2015 - 05:00
  • UTMB Qualifier Inside Trail Racing Trail

Rocky Raccoon 100 Mile

  • North America | USA | West South Central | Texas | Huntsville
  • Ultramarathon - 100 miles
  • January 31, 2015 - 06:00
  • Trail Tejas Trails Western States Qualifier

Rocky Raccoon 50 Mile

  • North America | USA | West South Central | Texas | Huntsville
  • Ultramarathon - 50 miles
  • January 31, 2015 - 07:00
  • Trail Tejas Trails

Rodgau 50km Ultramarathon

  • Europe | Germany | Hesse | Rodgau
  • Ultramarathon - 50 kilometers
  • January 31, 2015

Run for Regis 50K

  • North America | USA | East North Central | Ohio | Cuyahoga Valley National Park
  • Ultramarathon - 50 kilometers
  • January 31, 2015 - 07:30
  • Trail

Skydive Ultra 100M Run

  • North America | USA | Florida | Clewiston
  • Ultramarathon - 100 miles
  • January 31, 2015