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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.

Refine by Show races on a map

2,677 races

Bieg Grania Tatr

  • Europe | Poland | Siwa Polona
  • Ultramarathon - 70 kilometers
  • August 15, 2015 - 04:00 To be confirmed
  • UTMB Qualifier Trail Mountain

Cinderella Trail Run 50 km (Aug)

  • North America | USA | Pacific | California | Joaquin Miller Park, Oakland
  • Ultramarathon - 50 kilometers
  • August 15, 2015 - 08:00
  • Costal Trail Runs Trail

Eastern States 100

  • North America | USA | Mid-Atlantic | Pennsylvania | Waterville
  • Ultramarathon - 100 miles
  • August 15, 2015
  • Trail Mountain

Fat Dog 100 Trail Race: 30 mile

  • North America | Canada | British Columbia | Keremeos
  • Ultramarathon - 30 miles
  • August 15, 2015
  • Trail Relay Mountain

Fat Dog 100 Trail Race: 50 mile

  • North America | Canada | British Columbia | Keremeos
  • Ultramarathon - 50 miles
  • August 15, 2015
  • Trail

Fat Dog 100 Trail Race: 70 mile

  • North America | Canada | British Columbia | Keremeos
  • Ultramarathon - 70 miles
  • August 15, 2015
  • Trail

Haría Extreme Ultra

  • Europe | Spain | Canary Islands | Haría
  • Ultramarathon - 80 kilometers
  • August 15, 2015
  • Trail Spain Ultra Cup Mountain

Inov-8 Roseland August Trail - 32 Mile

  • Europe | United Kingdom | Cornwall | Porthpean
  • Ultramarathon - 32 miles
  • August 15, 2015

Inov-8 Roseland August Trail - The Plague

  • Europe | United Kingdom | Cornwall | Porthpean
  • Ultramarathon - 64 miles
  • August 15, 2015
  • UTMB Qualifier

Iron Legs 50 Miler

  • North America | Canada | Alberta | Kananaskis
  • Ultramarathon - 50 miles
  • August 15, 2015 - 06:00
  • Trail Relay Mountain

Marquette Trail 50 Kilometer

  • North America | USA | East North Central | Michigan | Marquette
  • Ultramarathon - 50 kilometers
  • August 15, 2015 - 06:30
  • Trail

Marquette Trail 50 Mile

  • North America | USA | East North Central | Michigan | Marquette
  • Ultramarathon - 50 miles
  • August 15, 2015 - 06:30
  • Trail

Peak Trail ‘Intro Ultra’

  • Europe | United Kingdom | Sheffield | Sheffield
  • Ultramarathon - 30 miles
  • August 15, 2015
  • Trail

Raidlight Sardona Ultra Trail

  • Europe | Switzerland | Zurich | Furt
  • Ultramarathon - 82 kilometers
  • August 15, 2015 - 08:30
  • UTMB Qualifier Trail Mountain

Skyline Mountain 50K

  • North America | USA | Utah | Liberty
  • Ultramarathon - 50 kilometers
  • August 15, 2015
  • Trail Mountain