2015 - 2016 USA Trail Ultramarathon Calendar in August

Browse our Ultramarathon Calendar for races organized in USA during the month of August bearing the tag Trail among 79 races.

79 races

Angeles Crest 100 mile endurance run

  • August 01, 2015
  • North America | USA | Pacific | California | Wrightwood
  • Ultramarathon - 100 miles
  • Trail Western States Qualifier

Grand Ridge Trail Run (August)

Grand Ridge 50K Trail Run (August)

  • August 01, 2015
  • North America | USA | Pacific | Washington | Issaquah
  • Ultramarathon - 50 kilometers
  • Trail Evergreen Trail Runs

HURL Elkhorn 50 Mile/50 K Ultramarathons

HURL Elkhorn 50 K Ultramarathon

  • August 01, 2015 - 07:00
  • North America | USA | Mountain Region | Montana | Montana City
  • Ultramarathon - 50 kilometers
  • Trail Mountain

HURL Elkhorn 50 Mile/50 K Ultramarathons

HURL Elkhorn 50 Mile Ultramarathon

  • August 01, 2015 - 05:00
  • North America | USA | Mountain Region | Montana | Montana City
  • Ultramarathon - 50 miles
  • Trail Mountain

Kat'cina Mosa 100K Mountain Challenge Run

  • August 01, 2015 - 03:00
  • North America | USA | Mountain Region | Utah | Springville
  • Ultramarathon - 100 kilometers
  • Trail Mountain

Montaña de Oro

Montaña de Oro 50km

  • August 01, 2015 - 08:30
  • North America | USA | California | Los Osos
  • Ultramarathon - 50 kilometers
  • Trail Pacific Trail Runs

Moosalamoo Ultra

Moosalamoo Ultra - 36 M

  • August 01, 2015
  • North America | USA | Vermont | Goshen
  • Ultramarathon - 36 miles
  • Trail

Ultra Adventure Tushars

Ultra Adventure Tushars 93K

  • August 01, 2015 - 05:00
  • North America | USA | Utah | Eagle Point Ski Resort
  • Ultramarathon - 93 kilometers
  • Trail

Vertigo Night Trail Runs

Vertigo 63K Night Trail Run

  • August 01, 2015 - 19:00
  • North America | USA | Mountain Region | Arizona | White Tank Mountain Regional Park, Waddell
  • Ultramarathon - 63 kilometers
  • Night Trail Aravaipa Running

Viaduct Trail Ultramarathon

Viaduct Trail 100 Mile Ultramarathon

  • August 01, 2015 - 05:00
  • North America | USA | Mid-Atlantic | Pennsylvania | Lanesboro
  • Ultramarathon - 100 miles
  • Trail

Viaduct Trail Ultramarathon

Viaduct Trail 50 Mile Ultramarathon

  • August 01, 2015 - 05:00
  • North America | USA | Mid-Atlantic | Pennsylvania | Lanesboro
  • Ultramarathon - 50 miles
  • Trail

Wild Idaho Endurance Runs

Wild Idaho 50K Enrudance Run

  • August 01, 2015 - 06:00
  • North America | USA | Mountain Region | Idaho | Crouch
  • Ultramarathon - 50 kilometers
  • Trail Mountain

Wild Idaho Endurance Runs

Wild Idaho 50M Enrudance Run

  • August 01, 2015 - 06:00
  • North America | USA | Mountain Region | Idaho | Crouch
  • Ultramarathon - 50 miles
  • Trail Mountain

Bigfoot 200 Mile Endurance Run

  • August 07, 2015 Inaugural race
  • North America | USA | Pacific | Oregon | Marble Mountain Sno-Park
  • Ultramarathon - 215 miles
  • Trail

Bigfoot 200 Mile Endurance Run

  • August 07, 2015 Inaugural race
  • North America | USA | Washington | Marble Mountain Sno-Park
  • Ultramarathon - 215 miles
  • Trail