US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,078 races

Fire on the Mountain 50K

  • North America | USA | South Atlantic | Maryland | 17756
  • Ultramarathon - 50 kilometers
  • October 26, 2014
  • Trail Relay

G.O.A.T.z 50K Trail Run

  • North America | USA | Nebraska | 21043
  • Ultramarathon - 50 kilometers
  • October 26, 2014 - 08:00
  • Trail

Lake Hodges 50K

  • North America | USA | Pacific | California | 17558
  • Ultramarathon - 50 kilometers
  • October 26, 2014 - 07:00
  • Trail

Mutual Mine 50K

  • North America | USA | South Atlantic | Florida | 16153
  • Ultramarathon - 50 kilometers
  • October 26, 2014 - 08:00
  • Trail

"Running for the Bay!" 50K

  • North America | USA | South Atlantic | Florida | 17064
  • Ultramarathon - 50 kilometers
  • October 26, 2014 - 07:15
  • Wheelchair "Road Running"

SCOTT Cougar Mountain Series 50k

  • North America | USA | Pacific | Washington | 17839
  • Ultramarathon - 50 kilometers
  • October 26, 2014 - 08:00
  • Hilly Trail "Northwest Trail Runs"

Stone Steps 50k Trail Run

  • North America | USA | East North Central | Ohio | 9759
  • Ultramarathon - 50 kilometers
  • October 26, 2014 - 08:00
  • Trail

Chicago Lakefront 50K

  • North America | USA | East North Central | Illinois | 3919
  • Ultramarathon - 50 kilometers
  • November 01, 2014 - 08:30
  • "Road Running"

Chicago Lakefront 50M

  • North America | USA | East North Central | Illinois | 4455
  • Ultramarathon - 50 meters
  • November 01, 2014 - 06:30

Coyote Springs 100K Trail Run

  • North America | USA | Mountain Region | Nevada | 16609
  • Ultramarathon - 100 kilometers
  • November 01, 2014
  • Hilly Trail "Elemental Running and Training"

Coyote Springs 100M Trail Run

  • North America | USA | Mountain Region | Nevada | 16608
  • Ultramarathon - 100 miles
  • November 01, 2014
  • "UTMB Qualifier" Hilly Trail "Elemental Running and Training"

Coyote Springs 50K Trail Run

  • North America | USA | Mountain Region | Nevada | 9674
  • Ultramarathon - 50 kilometers
  • November 01, 2014
  • Hilly Trail "Elemental Running and Training"

Coyote Springs 50M Trail Run

  • North America | USA | Mountain Region | Nevada | 16610
  • Ultramarathon - 50 miles
  • November 01, 2014
  • "UTMB Qualifier" Hilly Trail "Elemental Running and Training"

Dirty Dare Trail Run 50 km

  • North America | USA | Pacific | California | 17500
  • Ultramarathon - 50 kilometers
  • November 01, 2014 - 08:30
  • Trail

Ghost Train Ultra Race 100M

  • North America | USA | New Hampshire | 19720
  • Ultramarathon - 100 miles
  • November 01, 2014 - 09:00
  • Trail "Tarc Trail Series"