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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3,127 races

Great Naseby Water Race

Great Naseby Water Race 60 km
  • 2015-08-29
  • New Zealand | | Naseby
  • Ultramarathon - 60 kilometers
  • Team

Great Naseby Water Race

Great Naseby Water Race 80 km
  • 2015-08-29
  • New Zealand | | Naseby
  • Ultramarathon - 80 kilometers

Green Lakes Endurance Runs

Green Lakes 100 km Trail Race
  • 2015-08-29
  • USA | New York | Fayetteville
  • Ultramarathon - 100 kilometers
  • Trail

Green Lakes Endurance Runs

Green Lakes 50 km Trail Race
  • 2015-08-29
  • USA | New York | Fayetteville
  • Ultramarathon - 50 kilometers
  • Trail

Gunung 5 Nuang

  • 2015-08-29
  • Malaysia | | Mt Nuang
  • Ultramarathon - 100 kilometers
  • UTMB Qualifier Trail Mountain

Javelina Jangover Night Trail Runs

Javelina Jangover 100K Night Trail Run
  • 2015-08-29
  • USA | Arizona | McDowell Mountain Regional Park, Fountain Hills
  • Ultramarathon - 100 kilometers
  • Night Hilly Trail Aravaipa Running

Javelina Jangover Night Trail Runs

Javelina Jangover 50K Night Trail Run
  • 2015-08-29
  • USA | Arizona | McDowell Mountain Regional Park, Fountain Hills
  • Ultramarathon - 50 kilometers
  • Night Trail Aravaipa Running

Javelina Jangover Night Trail Runs

Javelina Jangover 75K Night Trail Run
  • 2015-08-29
  • USA | Arizona | McDowell Mountain Regional Park, Fountain Hills
  • Ultramarathon - 75 kilometers
  • Night Trail Aravaipa Running

London 2 Cambridge Challenge

  • 2015-08-29
  • United Kingdom | Greater London | Olympic Park, London
  • Ultramarathon - 100 kilometers
  • Walk

Most Beautiful Thing Ultra Trail Marathon

Most Beautiful Thing Ultra Trail Marathon - 100K
  • 2015-08-29
  • Malaysia | | Kota Kinabalu
  • Ultramarathon - 100 kilometers
  • UTMB Qualifier Trail Mountain

Most Beautiful Thing Ultra Trail Marathon

Most Beautiful Thing Ultra Trail Marathon - 50K
  • 2015-08-29
  • Malaysia | | Kota Kinabalu
  • Ultramarathon - 50 kilometers
  • UTMB Qualifier Trail Mountain

Oxfam Trailwalker Belgium

  • 2015-08-29
  • Belgium | Flanders | Kettenis
  • Ultramarathon - 100 kilometers
  • UTMB Qualifier Walk Fun Team Trail Fund raising Oxfam Trailwalker

Resort to Rock

Resort to Rock 60K
  • 2015-08-29
  • USA | Idaho | Boise
  • Ultramarathon - 60 kilometers
  • Trail

Reveille Peak Ranch

Reveille Peak Ranch - 60km
  • 2015-08-29
  • USA | Texas | Reveille Peak Ranch, Burnet
  • Ultramarathon - 60 kilometers
  • Night Trail Tejas Trails

Ridgeway Challenge

  • 2015-08-29
  • United Kingdom | Buckinghamshire | Ivinghoe Beacon
  • Ultramarathon - 86 miles
  • Hilly Trail