US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,078 races

Hallucination 100 Mile

  • North America | USA | East North Central | Michigan | Pinckney
  • Ultramarathon - 100 miles
  • September 05, 2014 - 16:00
  • Hilly Trail Midwest Grand Slam of Ultrarunning Western States Qualifier

Klondike Trail of '98 International Road Relay

  • North America | USA | Alaska | Skagway
  • Ultramarathon - 175 kilometers
  • September 05, 2014 - 18:00
  • Relay

LSD 100K

  • North America | USA | East North Central | Michigan | Pinckney
  • Ultramarathon - 100 kilometers
  • September 05, 2014 - 16:00
  • Hilly Trail Midwest Grand Slam of Ultrarunning

Superior Sawtooth 100 Mile

  • North America | USA | West North Central | Minnesota | Lutsen
  • Ultramarathon - 100 miles
  • September 05, 2014 - 08:00
  • UTMB Qualifier Trail Western States Qualifier

Tahoe 200

  • North America | USA | Pacific | California | Diamond Peak Ski Lodge, Incline Village
  • Ultramarathon - 200 miles
  • September 05, 2014 - 10:00 Inaugural race
  • Trail Bellingham Trail Running Series Mountain

Tahoe 200

  • North America | USA | Mountain Region | Nevada | Diamond Peak Ski Lodge, Incline Village
  • Ultramarathon - 200 miles
  • September 05, 2014 - 10:00 Inaugural race
  • Trail Bellingham Trail Running Series Mountain

The Blude Ridge Relay

  • North America | USA | South Atlantic | Virginia | Grayson Highlands State Park, Grayson County
  • Ultramarathon - 208 miles
  • September 05, 2014
  • Relay

Wasatch Front 100 Mile Endurance Run

  • North America | USA | Mountain Region | Utah | Layton
  • Ultramarathon - 100 miles
  • September 05, 2014 - 05:00
  • UTMB Qualifier Trail Western States Qualifier

BRRC Gunpowder Keg Ultra 50K Trail Race

  • North America | USA | South Atlantic | Maryland | Gunpowder State Park
  • Ultramarathon - 50 kilometers
  • September 06, 2014 - 08:00
  • Trail

Devil on the Divide 50K Trail Run

  • North America | USA | Colorado | Empire
  • Ultramarathon - 50 kilometers
  • September 06, 2014
  • Trail Mountain

Do-Wacka-Do 50k Trail Run

  • North America | USA | West South Central | Oklahoma | Erick
  • Ultramarathon - 50 kilometers
  • September 06, 2014 - 08:05
  • Trail

DoWackaDo 50 Mile Trail Run

  • North America | USA | West South Central | Oklahoma | Erick
  • Ultramarathon - 50 miles
  • September 06, 2014 - 07:00
  • Trail

DoWackaDo Trail 50K Run

  • North America | USA | West South Central | Oklahoma | Erick
  • Ultramarathon - 50 kilometers
  • September 06, 2014 - 07:00
  • Trail

Freak 50K

  • North America | USA | East North Central | Michigan | Pinckney
  • Ultramarathon - 50 kilometers
  • September 06, 2014 - 06:00
  • Hilly Trail Midwest Grand Slam of Ultrarunning

Groundhog Fall 50K

  • North America | USA | Pennsylvania | Punxsutawney
  • Ultramarathon - 50 kilometers
  • September 06, 2014 - 07:00