US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,319 races

Pigtails Challenge

Pigtails 150 Mile Challenge
  • May 22, 2015 - 06:00
  • North America | USA | Pacific | Washington | Lake Youngs Watershed
  • Ultramarathon - 150 miles
  • Trail

Gamelands Ultra

Gamelands Ultra 50K
  • May 23, 2015
  • North America | USA | South Atlantic | North Carolina | Wagram
  • Ultramarathon - 50 kilometers
  • Trail

G.O.A.T.z Gravel Classic 30k and 60k

G.O.A.T.z Gravel Classic 60k
  • May 23, 2015 - 08:00
  • North America | USA | West North Central | Nebraska | Blair
  • Ultramarathon - 60 kilometers

GOATz Gravel Classic

GOATz Gravel Classic 60K
  • May 23, 2015 - 08:00
  • North America | USA | West North Central | Nebraska | Blair
  • Ultramarathon - 60 kilometers
  • Road Running

Highland Forest 1-2-3 Trail Race

  • May 23, 2015 - 08:30
  • North America | USA | Mid-Atlantic | New York | Fabius
  • Ultramarathon - 30 miles
  • Hilly Trail

Jemez Mountain Trail Runs Half Marathon, 50K & 50-Mile Run

Jemez Mountain Trail Runs 50K
  • May 23, 2015 - 06:00
  • North America | USA | Mountain Region | New Mexico | Los Alamos
  • Ultramarathon - 50 kilometers
  • Hilly Trail

Jemez Mountain Trail Runs Half Marathon, 50K & 50-Mile Run

Jemez Mountain Trail Runs 50-Mile
  • May 23, 2015 - 05:00
  • North America | USA | Mountain Region | New Mexico | Los Alamos
  • Ultramarathon - 50 miles
  • Hilly Trail

Nanny Goat 24 Hour Trail

Nanny Goat 100M Trail
  • May 23, 2015
  • North America | USA | Pacific | California | Riverside
  • Ultramarathon - 100 miles
  • Trail Old Goat Trail Races

Pigtails Challenge

Pigtails 100 Mile Challenge
  • May 23, 2015 - 06:00
  • North America | USA | Pacific | Washington | Lake Youngs Watershed
  • Ultramarathon - 100 miles
  • Trail

Soaring Eagle 5 Mile, 10 Mile, Marathon and 50K Trail Run

Soaring Eagle 10 M Trail Run
  • May 23, 2015 - 08:00
  • North America | USA | Pacific | Washington | Sammamish
  • Ultramarathon - 50 kilometers
  • Hilly Green Trail Evergreen Trail Runs

Soaring Eagle 5 Mile, 10 Mile, Marathon and 50K Trail Run

Soaring Eagle 50K Trail Run
  • May 23, 2015
  • North America | USA | Pacific | Washington | Sammamish
  • Ultramarathon - 50 kilometers
  • Hilly Green Trail Evergreen Trail Runs

Trails of Fury

Trails of Fury 50K
  • May 23, 2015 - 06:00
  • North America | USA | Mountain Region | Nevada | Cottonwood Valley, Las Vegas
  • Ultramarathon - 50 kilometers
  • Trail Desert Dash

Pineland Farms Trail Running Festival

Pineland Farms 50K Trail
  • May 24, 2015 - 05:00
  • North America | USA | New England | Maine | New Gloucester
  • Ultramarathon - 50 kilometers
  • Hilly Trail

Pineland Farms Trail Running Festival

Pineland Farms 50 Mile Trail
  • May 24, 2015 - 05:00
  • North America | USA | New England | Maine | New Gloucester
  • Ultramarathon - 50 miles
  • Hilly Trail

First Ever Plymouth Greenbelt 50 Mile Ultra

  • May 24, 2015 - 04:00
  • North America | USA | New England | Massachusetts | Plymouth
  • Ultramarathon - 50 miles