US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

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1,357 races

Trail Factor 50k

May 29, 2017 Race day in 1 day
USA / Pacific / Oregon / Forest Park, Portland
Ultramarathon - 50 kilometers
Trail

Ragnar Relay Wasatch Back

June 02, 2017 Race day in 5 days
USA / Mountain Region / Utah / Logan
Ultramarathon - 192 miles
Ragnar Relay Series Relay

Worlds End Ultramarathon

100K
June 03, 2017 Race day in 6 days
USA / Mid-Atlantic / Pennsylvania / Forksville
Ultramarathon - 100 kilometers
Trail Mountain

Worlds End Ultramarathon

50K
June 03, 2017 Race day in 6 days
USA / Mid-Atlantic / Pennsylvania / Forksville
Ultramarathon - 50 kilometers
Trail Mountain

War Eagle Tail Twister Trail Races

50k
June 03, 2017 Race day in 6 days
USA / West South Central / Arkansas / Rogers
Ultramarathon - 50 kilometers
Trail

Coyote Lake Trail Run

50K
June 03, 2017 Race day in 6 days
USA / Pacific / California / Santa Clara
Ultramarathon - 50 kilometers
West Coast Trail Runs Hilly Trail

Ultimate Direction Dirty 30

50K
June 03, 2017 Race day in 6 days
USA / Mountain Region / Colorado / Golden Gate Canyon State Park
Ultramarathon - 50 kilometers
Charity Trail Mountain

Green Jewel 50K Fun Run

50K 2 Person Relay
June 03, 2017 Race day in 6 days
USA / East North Central / Ohio / Rocky River
Ultramarathon - 50 kilometers
Western Reserve Racing Relay

Green Jewel 50K Fun Run

50K Fun Run
June 03, 2017 Race day in 6 days
USA / East North Central / Ohio / Rocky River
Ultramarathon - 50 kilometers
Western Reserve Racing Relay

North Fork 50 Mile/50K Trail Race

50K Trail Race
June 03, 2017 Race day in 6 days
USA / Mountain Region / Colorado / Pine Valley Ranch Park, Pine
Ultramarathon - 50 kilometers
Trail Mountain

North Fork 50 Mile/50K Trail Race

50 Mile Trail Race
June 03, 2017 Race day in 6 days
USA / Mountain Region / Colorado / Pine Valley Ranch Park, Pine
Ultramarathon - 50 miles
Trail Mountain

Bend Beer Chase

June 03, 2017 Race day in 6 days
USA / Pacific / Oregon / Bend
Ultramarathon - 70 miles
Relay

Cayuga Trails 50

June 03, 2017 Race day in 6 days
USA / Mid-Atlantic / New York / Treman State Park, Ithaca
Ultramarathon - 50 miles
Hilly Trail

Hell Hole Hundred

Hell Hole Hundred - 100K
June 03, 2017 Race day in 6 days
USA / South Atlantic / South Carolina / Bethera
Ultramarathon - 100 kilometers

Hell Hole Hundred

Hell Hole Hundred - 100M
June 03, 2017 Race day in 6 days
USA / South Atlantic / South Carolina / Bethera
Ultramarathon - 100 miles
Relay