US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,366 races

Badder Marsh Night Ultra 50K

50K
2018-06-24
North America / USA / South Atlantic / Georgia / Richmond Hill
Ultramarathon
Night Race Multi terrain Running Solo

Bay of Fundy International Marathon

52K Ultra-Marathon
2018-06-24 - 05:30
North America / USA / New England / Maine / Lubec
Ultramarathon
Road Running Solo

Running with the Devil 100M, 50M, 50K, Marathon, 1/2, 10K, and 5K

50K
2018-06-24 - 06:00
North America / USA / Mountain Region / Nevada / Lovell Canyon Road
Ultramarathon
Road Running Solo

San Lorenzo River Trail Run

50 km
2018-06-24 - 08:00
North America / USA / Pacific / California / Harvey West Park, Santa Cruz
Ultramarathon
Trail Running Solo

Dawg Gone Long Run 50k/50 Miler

50k Ultra
2018-06-30 - 07:30
North America / USA / East North Central / Ohio / Waynesville
Ultramarathon
Trail Running Solo

Dawg Gone Long Run 50k/50 Miler

50 Mile Ultra
2018-06-30 - 06:30
North America / USA / East North Central / Ohio / Waynesville
Ultramarathon
Trail Running Solo

Finger Lakes Fifties

50 Miles
2018-06-30 - 06:30
North America / USA / Mid-Atlantic / New York / Hector
Ultramarathon
Trail Running Solo

Finger Lakes Fifties

50K
2018-06-30 - 06:30
North America / USA / Mid-Atlantic / New York / Hector
Ultramarathon
Trail Running Solo

Seeley Lake 50K and 10K

50K
2018-06-30 - 06:15
North America / USA / Mountain Region / Montana / Seeley Lake
Ultramarathon
Mountain Trail Running Mountain Solo

Buckeye Trail 50K

2018-07-07 - 07:00
North America / USA / East North Central / Ohio / Brecksville
Ultramarathon
Running

Golden Gate Trail Run (summer)

Golden Gate Trail Run 50 km (summer)
2018-07-07 - 07:00
North America / USA / Pacific / California / Rodeo Beach, Golden Gate National Recreation, CA
Ultramarathon
Trail Running Solo

John Cappis 50K Fat Ass

2018-07-07 - 05:00
North America / USA / Mountain Region / Colorado / Silverton
Ultramarathon
Trail Running Mountain
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