US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

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1,396 races

Ultra Adventure Tushars

100K
July 30, 2017 Race day in about 1 month
USA / Mountain Region / Utah / Eagle Point Ski Resort
Ultramarathon - 100 kilometers
Trail

Trail Runner Ultra Race of Champions 100K

100K
May 13, 2017 The race has already taken place.
USA / South Atlantic / Virginia / Raphine
Ultramarathon - 100 kilometers
Trail Mountain

Lone Star 100

100K
February 11, 2017 The race has already taken place.
USA / West South Central / Texas / Tom Mays Unit Trail
Ultramarathon - 100 kilometers

Crazy Desert Trail Race

100k
March 11, 2017 The race has already taken place.
USA / West South Central / Texas / Park Drive
Ultramarathon - 100 kilometers

Blazing 7's Trail Run

100k
September 30, 2017 Race day in 3 months
USA / West South Central / Texas / Cat Spring
Ultramarathon - 100 kilometers
Trail

Black Canyon Ultras

100K
February 18, 2017 The race has already taken place.
USA / Mountain Region / Arizona / Spring Valley
Ultramarathon - 100 kilometers
Trail Aravaipa Running Western States Qualifier

C.U.R.E Ultra's

100K
April 29, 2017 The race has already taken place.
USA / Mountain Region / Colorado / Chatfield State Park, Littleton
Ultramarathon - 100 kilometers
Trail

Blazing 7s

100k
October 01, 2016 The race has already taken place.
USA / West South Central / Texas / Cat Spring
Ultramarathon - 62.400 miles

J&J Race and Trail Running Reunion

100K
September 30, 2017 Race day in 3 months
USA / West South Central / Texas / Rocksprings
Ultramarathon - 100 kilometers
Tejas Trails

Pistol Ultra Run

100K
December 31, 2016 The race has already taken place.
USA / East South Central / Tennessee / Alcoa
Ultramarathon - 100 kilometers

100 Not Yo Momma's

100K
September 24, 2016 The race has already taken place.
USA / East North Central / Ohio / Great Seal State Park, Chillicothe
Ultramarathon - 100 kilometers

Canyons 50K Trail Run

100K
April 29, 2017 The race has already taken place.
USA / Pacific / California / Foresthill
Ultramarathon - 100 kilometers
Trail Western States Qualifier Mountain