US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,375 races

Badwater Ultramarathon

2018-07-23 - 06:00
North America / USA / Pacific / California / Lone Pine
Ultramarathon
Desert Mountain Road Running Mountain Solo

Ouray 100 Mile Endurance Run

102.1 Miles
2018-07-27 - 08:00
North America / USA / Mountain Region / Colorado / Ouray
Ultramarathon
Mountain Trail Running Mountain Solo

Audi Power of Four Trail Run

50K
2018-07-28 - 06:00
North America / USA / Mountain Region / Colorado / Aspen
Ultramarathon
Trail Running Solo

Harding Hustle

50K
2018-07-28 - 06:00
North America / USA / Pacific / California / Modjeska Canyon
Ultramarathon
Mountain Trail Running Mountain Solo

Hot, Hilly, Hairy Ultra Solo & Relay

85K
2018-07-28 - 06:00
North America / USA / East North Central / Wisconsin / Kenosha
Ultramarathon
Trail Running Hilly Solo

Hot, Hilly, Hairy Ultra Solo & Relay

100K
2018-07-28 - 06:00
North America / USA / East North Central / Wisconsin / Kenosha
Ultramarathon
Trail Running Hilly Solo

Hot, Hilly, Hairy Ultra Solo & Relay

50K Relay
2018-07-28 - 06:00
North America / USA / East North Central / Wisconsin / Kenosha
Ultramarathon
Trail Running Hilly Relay

Hot, Hilly, Hairy Ultra Solo & Relay

85K Relay
2018-07-28 - 06:00
North America / USA / East North Central / Wisconsin / Kenosha
Ultramarathon
Trail Running Hilly Relay

Hot, Hilly, Hairy Ultra Solo & Relay

50K
2018-07-28 - 06:00
North America / USA / East North Central / Wisconsin / Kenosha
Ultramarathon
Trail Running Hilly Solo

Lost Turkey Trail

50 Miler
2018-07-28 - 04:00
North America / USA / Mid-Atlantic / Pennsylvania / Blue Knob
Ultramarathon
Trail Running Solo

Never Summer 100km

2018-07-28 - 05:30
North America / USA / Mountain Region / Colorado / Gould
Ultramarathon
Western States Qualifier Trail Running Mountain Solo

Ouray 100 Mile Endurance Run

51.9 Miles
2018-07-28 - 12:00
North America / USA / Mountain Region / Colorado / Ouray
Ultramarathon
Mountain Trail Running Mountain Solo
Upcoming races first Name A->Z Name Z->A Location A->Z Location Z->A Date older->newer Date newer-> older