US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,359 races

Pineland Farms Trail Running Festival

Pineland Farms 50K Trail
2016-05-29
USA / New England / Maine / New Gloucester
Ultramarathon - 50 kilometers
Hilly Trail

Pineland Farms Trail Running Festival

Pineland Farms 50 Mile Trail
2016-05-29
USA / New England / Maine / New Gloucester
Ultramarathon - 50 miles
Hilly Trail

Wyoming Marathon Races

Rocky Mountain 50k
2016-05-29
USA / Mountain Region / Wyoming / Laramie
Ultramarathon - 50 kilometers
Road Running

Webberville Memorial Day Run

10k Run
2016-05-30
USA / East North Central / Michigan / Webberville
Ultramarathon - 62 miles

Trail Factor 50k

2016-05-30
USA / Pacific / Oregon / Forest Park, Portland
Ultramarathon - 50 kilometers
Trail

San Diego 100 Mile Endurance Run

2016-06-03
USA / Pacific / California / Laguna
Ultramarathon - 100 miles
UTMB Qualifier Trail Western States Qualifier

Ultimate Direction Dirty 30

50K
2016-06-04
USA / Mountain Region / Colorado / Golden Gate Canyon State Park
Ultramarathon - 50 kilometers
Charity Trail Mountain

North Fork 50 Mile/50K Trail Race

50K Trail Race
2016-06-04
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
2016-06-04
USA / Mountain Region / Colorado / Pine Valley Ranch Park, Pine
Ultramarathon - 50 miles
Trail Mountain

Bend Beer Chase

2016-06-04
USA / Pacific / Oregon / Bend
Ultramarathon - 70 miles
Relay

Cayuga Trails 50

2016-06-04
USA / Mid-Atlantic / New York / Treman State Park, Ithaca
Ultramarathon - 50 miles
Hilly Trail

Go! KT82 Trail Relay

2016-06-04
USA / West North Central / Missouri / Creve Coeur Park
Ultramarathon - 82 miles
Trail Relay

Hell Hole Hundred

Hell Hole Hundred - 100K
2016-06-04
USA / South Atlantic / South Carolina / Bethera
Ultramarathon - 100 kilometers

Hell Hole Hundred

Hell Hole Hundred - 100M
2016-06-04
USA / South Atlantic / South Carolina / Bethera
Ultramarathon - 100 miles
Relay

Hell Hole Hundred

Hell Hole Hundred - 60K
2016-06-04
USA / South Atlantic / South Carolina / Bethera
Ultramarathon - 60 kilometers