Win your entry for the 100km run Biel in Switzeland

2015 - 2016 Trail Ultramarathon Calendar

Browse our Ultramarathon Calendar for races organized around the world bearing the tag Trail among 2000 races.

2,000 races

Arrowhead 135 mile Winter Ultramarathon

  • North America | USA | West North Central | Minnesota | International Falls
  • Ultramarathon - 135 miles
  • January 26, 2015 - 07:00
  • Snow Trail

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

Run for Regis 50K

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

Ultra Trilhos dos Abutres

  • Europe | Portugal | Miranda do Corvo
  • Ultramarathon - 47 kilometers
  • January 31, 2015 - 08:00
  • UTMB Qualifier Trail

Winter Festival Goat 50K

  • North America | USA | West South Central | Texas | San Antonio
  • Ultramarathon - 50 kilometers
  • January 31, 2015
  • Fast Walk Flat Fun Road Running Trail

Winter Festival Goat 50 Mile

  • North America | USA | West South Central | Texas | San Antonio
  • Ultramarathon - 50 miles
  • January 31, 2015
  • Fast Walk Flat Fun Road Running Trail

Survival Run: Nicaragua

  • North America | Nicaragua | Isla de Ometepe
  • Ultramarathon - 70 kilometers
  • February 04, 2015 - 04:00
  • Hilly Charity Invitation only Green Central America Mud Obstacle race Trail Mountain Extreme

Arc of Attrition

  • Europe | United Kingdom | Cornwall | Porthtowan
  • Ultramarathon - 100 miles
  • February 06, 2015 - 18:00
  • Trail

Thar Desert Run - 100 miles

  • Asia | India | Fort Pokhran
  • Ultramarathon - 100 miles
  • February 06, 2015 - 05:00
  • Desert Trail GlobeRacers