US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,362 races

  • 1
  • 91

Bigfoot 200 Mile Endurance Run

  • 2015-08-07
  • USA | Oregon | Marble Mountain Sno-Park
  • Ultramarathon - 205 miles
  • Trail

Bigfoot 200 Mile Endurance Run

  • 2015-08-07
  • USA | Washington | Marble Mountain Sno-Park
  • Ultramarathon - 205 miles
  • Trail

Elkhorn Relay

  • 2015-08-07
  • USA | Oregon | La Grande
  • Ultramarathon - 203 miles
  • Relay

Ragnar Relay Colorado

  • 2015-08-07
  • USA | Colorado | Aspen
  • Ultramarathon - 200 miles
  • Relay Mountain Ragnar Relay Series

Resurrection Pass Ultra Trail Races

Resurrection Pass 100 Mile Ultra Trail
  • 2015-08-07
  • USA | Alaska | Cooper Landing
  • Ultramarathon - 100 miles
  • Hilly Trail

Wildcat Ridge Romp

100k
  • 2015-08-08
  • USA | New Jersey | Rockaway Township
  • Ultramarathon - 100 kilometers
  • NJ Trail Series

Wildcat Ridge Romp

50k
  • 2015-08-08
  • USA | New Jersey | Rockaway Township
  • Ultramarathon - 50 kilometers
  • NJ Trail Series

Wildcat Ridge Romp

50M
  • 2015-08-08
  • USA | New Jersey | Rockaway Township
  • Ultramarathon - 50 miles
  • NJ Trail Series

Angels Staircase

Angels Staircase 60K
  • 2015-08-08
  • USA | Washington | Carlton
  • Ultramarathon - 60 kilometers
  • Trail Rainshadow Running Mountain

Beast of Burden Summer 100 Miler & 50 Miler Ultra Marathon

Beast of Burden Summer 100 Miler
  • 2015-08-08
  • USA | New York | Lockport
  • Ultramarathon - 100 miles

Beast of Burden Summer 100 Miler & 50 Miler Ultra Marathon

Beast of Burden Summer 50 Miler
  • 2015-08-08
  • USA | New York | Lockport
  • Ultramarathon - 50 miles

Colorado Bend

Colorado Bend - 60k
  • 2015-08-08
  • USA | Texas | Colorado Bend State Park
  • Ultramarathon - 60 kilometers
  • Night Trail Tejas Trails

Cool Moon 100M/50M/25M/14M

Cool Moon 100M
  • 2015-08-08
  • USA | California | Cool
  • Ultramarathon - 100 miles
  • Trail Elemental Running and Training

Cool Moon 100M/50M/25M/14M

Cool Moon 50M
  • 2015-08-08
  • USA | California | Cool
  • Ultramarathon - 50 miles
  • Trail Elemental Running and Training

El Vaquero Loco

El Vaquero Loco 50K
  • 2015-08-08
  • USA | Wyoming | Afton
  • Ultramarathon - 50 kilometers
  • Trail Mountain
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