US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

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1,371 races

Tinajas Ultras

100K
March 04, 2017 Race day in 5 days
USA / West South Central / Texas / Bend
Ultramarathon - 100 kilometers
Tejas Trails Trail

Tinajas Ultras

50K
March 04, 2017 Race day in 5 days
USA / West South Central / Texas / Bend
Ultramarathon - 50 kilometers
Tejas Trails Trail

Old West Trails Fest

50K Ultra
March 04, 2017 Race day in 5 days
USA / Pacific / California / Julian
Ultramarathon - 50 kilometers
Desert Trail

Carl Touchstone Mississippi Trail Runs

Carl Touchstone Mississippi Trail 50 K
March 04, 2017 Race day in 5 days
USA / East South Central / Mississippi / De Soto National Forest
Ultramarathon - 50 kilometers
Trail

Carl Touchstone Mississippi Trail Runs

Carl Touchstone Mississippi Trail 50 Mile
March 04, 2017 Race day in 5 days
USA / East South Central / Mississippi / De Soto National Forest
Ultramarathon - 50 miles
Trail

Delano Park

Delano Park 50 Mile Solo
March 04, 2017 Race day in 5 days
USA / East South Central / Alabama / Decatur
Ultramarathon - 50 miles
Relay

Foothills 50k & Bear Crawl 10 Miler

Foothills 50k
March 04, 2017 Race day in 5 days
USA / South Atlantic / South Carolina / Table Rock State Park
Ultramarathon - 50 kilometers
Trail

Lenape Trail Run

March 04, 2017 Race day in 5 days
USA / Mid-Atlantic / New Jersey / Millburn
Ultramarathon - 34 miles
Trail

Naked Bavarian 20M, 26.2 & 40M

Naked Bavarian 40M
March 04, 2017 Race day in 5 days
USA / Mid-Atlantic / Pennsylvania / Blue Marsh Lake, Leesport
Ultramarathon - 40 miles
Trail

Old Pueblo 50 Miler

March 04, 2017 Race day in 5 days
USA / Mountain Region / Arizona / Sonoita
Ultramarathon - 50 miles
Trail

Red Mountain

Red Mountain 50K
March 04, 2017 Race day in 5 days
USA / Mountain Region / Utah / Ivins
Ultramarathon - 50 kilometers
Trail

Seneca Creek Greenway Trail Marathon & 50K

Seneca Creek Greenway Trail 50K
March 04, 2017 Race day in 5 days
USA / South Atlantic / Maryland / Damascus
Ultramarathon - 50 kilometers
Interview

Way Too Cool 50k

March 04, 2017 Race day in 5 days
USA / Pacific / California / Cool
Ultramarathon - 50 kilometers
Trail

Caumsett Park 50K Championship and GLIRC 25K Run

50K Run
March 05, 2017 Race day in 6 days
USA / Mid-Atlantic / New York / Lloyd Harbor
Ultramarathon - 50 kilometers

Q50 Races Trails Extravaganza

Ultra 50K
March 05, 2017 Race day in 6 days
USA / West South Central / Louisiana / Franklinton
Ultramarathon - 50 kilometers
Trail Q50 Races