US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,453 races

Clearwater Distance Classic

Clearwater Distance 50K Ultra
01/21/2018 - 07:05
North America / USA / South Atlantic / Florida / Clearwater
Ultramarathon
Road Running

Crystal Springs Trail Run

Crystal Springs 50 Km Trail Run
01/21/2018 - 08:30
North America / USA / Pacific / California / Woodside
Ultramarathon
Trail Running Hilly

Willis River 35K & 50K Trail Runs

Willis River 50K Trail Run
01/21/2018
North America / USA / South Atlantic / Virginia / Cumberland
Ultramarathon
Trail Running

AZT Oracle Rumble

50k
01/27/2018 - 07:30
North America / USA / Mountain Region / Arizona / Oracle
Ultramarathon
Trail Running

AZT Oracle Rumble

50 Miles
01/27/2018 - 07:30
North America / USA / Mountain Region / Arizona / Oracle
Ultramarathon
Trail Running

AZT Oracle Rumble

50 Mile-Relay
01/27/2018 - 07:30
North America / USA / Mountain Region / Arizona / Oracle
Ultramarathon
Trail Running

Cape Cod Frozen Fat Ass

50 km
01/27/2018 - 08:00
North America / USA / New England / Massachusetts / Barnstable
Ultramarathon
Sand Trail Running Multiple loops

Folsom Lake Sweet Water Trail Run

50K Run
01/27/2018 - 08:00 To be confirmed
North America / USA / Pacific / California / Folsom
Ultramarathon
Trail Running Hilly

Kahtoola Bigfoot Snowshoe Festival

50K
01/27/2018 - 08:00
North America / USA / Mountain Region / Utah / Midway
Ultramarathon
Snow Running

Mountain Mist 50K Trail Run

01/27/2018 - 07:30
North America / USA / East South Central / Alabama / Hunstville
Ultramarathon
Trail Running

North Carolina Fat Ass 50k

01/27/2018 - 08:00
North America / USA / South Atlantic / North Carolina / Fort Bragg
Ultramarathon
Trail Running

Oracle Rumble 50M, 50 Mile 2 Person Relay, 50K, Half Marathon and 12K

50M
01/27/2018 - 07:30
North America / USA / Mountain Region / Arizona / Tucson
Ultramarathon
Trail Running
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