US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

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1,393 races

Rosaryville Veteran's Day 50k

November 11, 2017 Race day in 10 months
USA / South Atlantic / Maryland / Upper Malboro
Ultramarathon - 50 kilometers
Trail

Cottonmouth 100

November 11, 2017 Race day in 10 months
USA / South Atlantic / Florida / 32570
Ultramarathon - 100 miles
Trail

Franklin Mountains Trail Run

50k
November 11, 2017 Race day in 10 months
USA / West South Central / Texas / El Paso
Ultramarathon - 25 kilometers

NJ Trail Series One Day

NJ Trail Series One Day - 50K
November 11, 2017 Race day in 10 months
USA / Mid-Atlantic / New Jersey / Sussex County Fairgrounds
Ultramarathon - 50 kilometers

Silver Falls Trail Runs

50K Ultra
November 04, 2017 Race day in 10 months
USA / Pacific / Oregon / Silverton
Ultramarathon - 50 kilometers
Trail

Creek to River Relay

October 29, 2017 Race day in 10 months
USA / Mid-Atlantic / Pennsylvania / Perkiomenville
Ultramarathon - 29 miles
Relay

Cactus Rose

Cactus Rose 100 Mi Trail Run
October 28, 2017 Race day in 9 months
USA / West South Central / Texas / Bandera
Ultramarathon - 100 miles
UTMB Qualifier Tejas Trails Trail

Cactus Rose

Cactus Rose 50 Mi Trail Run
October 28, 2017 Race day in 9 months
USA / West South Central / Texas / Bandera
Ultramarathon - 50 miles
Tejas Trails Trail

"Running for the Bay!" Marathon

"Running for the Bay!" 50K
October 22, 2017 Race day in 9 months
USA / South Atlantic / Florida / Apalachicola Bay
Ultramarathon - 50 kilometers
Road Running Wheelchair

The Triple Lakes Trail Race

Triple Lakes Trail 40 Mile Run
October 21, 2017 Race day in 9 months
USA / South Atlantic / North Carolina / Greensboro
Ultramarathon - 40 miles
Trail

WC-50 Ultra Trail Marathon

WC-50 Ultra Trail Marathon 50k
October 14, 2017 Race day in 9 months
USA / South Atlantic / North Carolina / Charlotte
Ultramarathon - 50 kilometers
Trail

Pilot Mountain to Hanging Rock Ultra 50K and 50- Mile Run

Pilot Mountain to Hanging Rock Ultra 50K Run
October 14, 2017 Race day in 9 months
USA / South Atlantic / North Carolina / Pilot Mountain State Park
Ultramarathon - 50 kilometers
Hilly Trail

Cat's Tail Trail Marathon

October 14, 2017 Race day in 9 months
USA / Mid-Atlantic / New York / Shandaken
Ultramarathon - 26.500 miles
Trail Mountain

Rocky Peak Ultra Trail Race

50K Ultra Run
October 14, 2017 Race day in 9 months
USA / Pacific / California / Simi Valley
Ultramarathon - 50 kilometers
Charity Trail

Pilot Mountain to Hanging Rock Ultra 50K and 50- Mile Run

Pilot Mountain to Hanging Rock Ultra 50- Mile Run
October 14, 2017 Race day in 9 months
USA / South Atlantic / North Carolina / Pilot Mountain State Park
Ultramarathon - 50 miles
Hilly Trail