US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

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1,390 races

Coldwater Rumble

100 Mile Trail Run
January 21, 2017 Race day in 3 days
USA / Mountain Region / Arizona / Goodyear
Ultramarathon - 100 miles
Desert Trail Aravaipa Running

Go Short Go Long Go Very Long 5k, 10k, 25k, 50k, 50k 2-Person Relay

2-Person 50K Relay
January 21, 2017 Race day in 3 days
USA / West South Central / Oklahoma / Tulsa
Ultramarathon - 50 kilometers
Relay

Southern Tour Ultra

50K
January 21, 2017 Race day in 3 days
USA / South Atlantic / North Carolina / Wilmington
Ultramarathon - 50 kilometers
Flat Trail

Capitol Peak Mega-Fat Ass

50K
January 21, 2017 Race day in 3 days
USA / Pacific / Washington / Olympia
Ultramarathon - 50 kilometers
Trail

Miracle Match Marathon

50K
January 21, 2017 Race day in 3 days
USA / West South Central / Texas / Waco
Ultramarathon - 50 kilometers

Pullman Winter Ultra Series - January

50K
January 21, 2017 Race day in 3 days
USA / Pacific / Washington / Pullman
Ultramarathon - 50 kilometers

Southern Tour Ultra

50 Mile Relay
January 21, 2017 Race day in 3 days
USA / South Atlantic / North Carolina / Wilmington
Ultramarathon - 50 miles
Flat Trail Relay

Coldwater Rumble

52K
January 21, 2017 Race day in 3 days
USA / Mountain Region / Arizona / Goodyear
Ultramarathon - 52 kilometers
Desert Trail Aravaipa Running

Coldwater Rumble

52 Mile
January 21, 2017 Race day in 3 days
USA / Mountain Region / Arizona / Goodyear
Ultramarathon - 52 kilometers
Desert Trail Aravaipa Running

Crystal Springs Trail Run

Crystal Springs 50 Km Trail Run
January 21, 2017 Race day in 3 days
USA / Pacific / California / Woodside
Ultramarathon - 50 kilometers
Coastal Trail Runs Hilly Trail

Frozen Dead Guy 50km

January 21, 2017 Race day in 3 days
USA / Mountain Region / Colorado / Nederland
Ultramarathon - 50 kilometers
Trail Mountain Snow

Horseshoe Trail Run

Horseshoe Trail Run 50k
January 21, 2017 Race day in 3 days
USA / West South Central / Texas / Hitchcock
Ultramarathon - 50 kilometers
Trail

Salem Lakeshore Frosty Fifty 50k, 25k, and 50k Relay

Salem Lakeshore Frosty 50k
January 21, 2017 Race day in 3 days
USA / South Atlantic / North Carolina / Winston Salem
Ultramarathon - 50 kilometers

Salem Lakeshore Frosty Fifty 50k, 25k, and 50k Relay

Salem Lakeshore Frosty 50k Relay
January 21, 2017 Race day in 3 days
USA / South Atlantic / North Carolina / Winston Salem
Ultramarathon - 50 kilometers
Trail Relay

Clearwater Distance Classic

Clearwater Distance 50K Ultra
January 22, 2017 Race day in 4 days
USA / South Atlantic / Florida / Clearwater
Ultramarathon - 50 kilometers
Road Running Florida Road Races