US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

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1,398 races

Bell Ringer 50k/25k

50k
December 10, 2016 Race day in 3 days
USA / East South Central / Tennessee / Burns
Ultramarathon - 50 kilometers
Trail

Bulow Woods Trail Race and Ultra Marathon

50K Ultra Marathon
December 10, 2016 Race day in 3 days
USA / South Atlantic / Florida / Ormond Beach
Ultramarathon - 50 kilometers
Trail

Bigfoot 50K

Bigfoot 50K
December 10, 2016 Race day in 3 days
USA / East North Central / Ohio / Salt Fork State Park, Lore City
Ultramarathon - 50 kilometers
Trail Western Reserve Racing

Brazos Bend 100

Brazos Bend 100 Miler
December 10, 2016 Race day in 3 days
USA / West South Central / Texas / Needville
Ultramarathon - 100 miles
Flat Fun Trail Fast Relay

Brazos Bend 100

Brazos Bend 50 Miler
December 10, 2016 Race day in 3 days
USA / West South Central / Texas / Needville
Ultramarathon - 50 miles
Flat Fun Trail Fast

Daytona 100 Ultramarathon

Daytona 100
December 10, 2016 Race day in 3 days
USA / South Atlantic / Florida / Daytona Beach
Ultramarathon - 100 miles
Charity Flat Fast

Daytona 100 Ultramarathon

Daytona 50
December 10, 2016 Race day in 3 days
USA / South Atlantic / Florida / Daytona Beach
Ultramarathon - 50 miles
Charity Flat Fast

Deer Dodge 50

Deer Dodge 50K
December 10, 2016 Race day in 3 days
USA / South Atlantic / Florida / 32570
Ultramarathon - 50 kilometers
Trail

Deer Dodge 50

Deer Dodge 50 Miler
December 10, 2016 Race day in 3 days
USA / South Atlantic / Florida / 32570
Ultramarathon - 50 miles
Trail

Desert Solstice Invitational Track Meet

Desert Solstice 100 Mile Run
December 10, 2016 Race day in 3 days
USA / Mountain Region / Arizona / Phoenix
Ultramarathon - 100 miles
Invitation only Track Aravaipa Running

Desert Solstice Invitational Track Meet

Desert Solstice 50K Run
December 10, 2016 Race day in 3 days
USA / Mountain Region / Arizona / Phoenix
Ultramarathon - 50 kilometers
Invitation only Track Aravaipa Running

Frozen Trail Runfest

Frozen Trail Runfest 50K
December 10, 2016 Race day in 3 days
USA / Pacific / Oregon / Buford Park, Mt Pisgah - Eugene
Ultramarathon - 50 kilometers
Trail

Hellgate 100K

December 10, 2016 Race day in 3 days
USA / South Atlantic / Virginia / Natural Bridge Station
Ultramarathon - 100 kilometers
Trail Eco-x Sports Western States Qualifier

Hitchcock Hundred

Hitchcock Hundred 100 Miler
December 10, 2016 Race day in 3 days
USA / West North Central / Iowa / Honey Creek
Ultramarathon - 100 miles
Trail

Hitchcock Hundred

Hitchcock Hundred 50 Miler
December 10, 2016 Race day in 3 days
USA / West North Central / Iowa / Honey Creek
Ultramarathon - 50 miles
Trail