Worldwide 2016 – 2017 Ultramarathon Calendar

Looking for a comprehensive guide to 2016 – 2017 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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3,205 races

Everglades Ultras

Everglades 50K Trail Race
  • 2016-02-20
  • USA | Florida | Fakahatchee Strand Preserve State Park
  • Ultramarathon - 50 kilometers
  • Trail

Everglades Ultras

Everglades 50 Mile Trail Race
  • 2016-02-20
  • USA | Florida | Fakahatchee Strand Preserve State Park
  • Ultramarathon - 50 miles
  • Trail

Febapple Frozen Fifty

Febapple Frozen Fifty - 50K
  • 2016-02-20
  • USA | New Jersey | Maplewood
  • Ultramarathon - 50 kilometers
  • Trail NJ Trail Series

Febapple Frozen Fifty

Febapple Frozen Fifty - 50M
  • 2016-02-20
  • USA | New Jersey | Maplewood
  • Ultramarathon - 50 miles
  • Trail NJ Trail Series

Frozen Heart 50 km

Frozen Heart 50 km
  • 2016-02-20
  • USA | Maryland | Callaway
  • Ultramarathon - 50 kilometers
  • Trail

Headless Horsetooth Fat Ass 50K

  • 2016-02-20
  • USA | Colorado | Loveland
  • Ultramarathon - 50 kilometers
  • Trail Mountain

The Mission

La Misión - 80 km
  • 2016-02-20
  • Argentina | Villa la Angostura
  • Ultramarathon - 80 kilometers
  • UTMB Qualifier Trail Mountain Night

Lost 118

  • 2016-02-20
  • USA | Florida | Clewiston
  • Ultramarathon - 118 miles
  • Relay

Luneta to Tagaytay(LU2TA) Midnight Ultramarathon 60km

  • 2016-02-20
  • Philippines | Luneta
  • Ultramarathon - 60 kilometers
  • Night

MTC 50K Ultra & 25K Fun Run

Manasota Track Club 50K Ultra
  • 2016-02-20
  • USA | Florida | Sarasota
  • Ultramarathon - 50 kilometers
  • Fund raising

Montara Mountain Trail Run

Montara Mountain 50K Trail Run
  • 2016-02-20
  • USA | California | Pacifica
  • Ultramarathon - 50 kilometers
  • Trail Coastal Trail Runs

MSIG Sai Kung 50

MSIG Sai Kung 50
  • 2016-02-20
  • Hong-Kong | Sai Kung
  • Ultramarathon - 50 kilometers
  • UTMB Qualifier Hilly Trail

Olde Girdled Grit 50K

Olde Girdled Grit 50K
  • 2016-02-20
  • USA | Ohio | Concord Township
  • Ultramarathon - 50 kilometers

Psycho Wyco Run Toto Run

Psycho Wyco Run Toto Run 50K
  • 2016-02-20
  • USA | Kansas | Kansas City
  • Ultramarathon - 50 kilometers
  • Hilly Trail

Run for Amma

Run for Amma 50K
  • 2016-02-20
  • USA | California | Sunnyvale
  • Ultramarathon - 50 kilometers
  • Charity Trail