US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,356 races

Canyons 50K Trail Run

100K
2016-05-07
USA / Pacific / California / Foresthill
Ultramarathon - 100 kilometers
Trail Mountain Western States Qualifier

Nirvana Ultra Big Bear

100 Miler
2016-05-07
USA / Pacific / California / San Bernardino National Forest
Ultramarathon - 100 miles
Trail Nirvana Racing Co. Ultra Marathons Mountain

Canyons 50K Trail Run

50K
2016-05-07
USA / Pacific / California / Foresthill
Ultramarathon - 50 kilometers
Trail Mountain

Smith Rock Ascent 50K, 15M, 4M

50K
2016-05-07
USA / Pacific / Oregon / Smith Rock State Park, Terrebonne
Ultramarathon - 50 kilometers
UTMB Qualifier Trail Northwest Mountain Trail Series Mountain

Nirvana Ultra Big Bear

50 Miler
2016-05-07
USA / Pacific / California / San Bernardino National Forest
Ultramarathon - 50 miles
Trail Nirvana Racing Co. Ultra Marathons Mountain

All Day 5K

2016-05-07
USA / Mountain Region / Arizona / Chino Valley
Ultramarathon - 50 kilometers

Armstrong Redwoods

Armstrong Redwoods 50K
2016-05-07
USA / Pacific / California / Guerneville
Ultramarathon - 50 kilometers
Hilly Trail

Cactus to Cloud Trail Run

2016-05-07
USA / Mountain Region / New Mexico / Cloudcroft
Ultramarathon - 50 kilometers
Trail

Capon Valley 50K Run

2016-05-07
USA / South Atlantic / West Virginia / Yellow Spring
Ultramarathon - 50 kilometers
Hilly Trail Fund raising

Collegiate Peaks Trail Run

Collegiate Peaks 50M Trail Run
2016-05-07
USA / Mountain Region / Colorado / Buena Vista
Ultramarathon - 50 miles
Trail

Falcon 50

Falcon 50
2016-05-07
USA / Mountain Region / Colorado / Colorado Springs
Ultramarathon - 50 miles
Charity

Horseshoe Lake Trail Run

Horseshoe Lake 50K
2016-05-07
USA / Pacific / California / Palo Alto
Ultramarathon - 50 kilometers
Hilly Walk Trail Coastal Trail Runs

5K for FA

Kids Fun Run
2016-05-07
USA / Mid-Atlantic / New York / Hilton
Ultramarathon - 1000 kilometers

Long Island Greenbelt Trail 50k

Long Island Greenbelt Trail 50k
2016-05-07
USA / Mid-Atlantic / New York / Plainview
Ultramarathon - 50 kilometers
Trail

Lost Lake Ultra

Lost Lake 50K
2016-05-07
USA / Pacific / Washington / Bellingham
Ultramarathon - 50 kilometers
Trail Mountain