US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

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1,371 races

TARC Fells Trail Ultra

40M
December 02, 2017 Race day in 9 months
USA / New England / Massachusetts / Stoneham
Ultramarathon - 40 miles
Trail Tarc Trail Series

TARC Fells Trail Ultra

32M
December 02, 2017 Race day in 9 months
USA / New England / Massachusetts / Stoneham
Ultramarathon - 32 miles
Trail Tarc Trail Series

Caloosahatchee Ultra

Caloosahatchee Ultra 50K
December 02, 2017 Race day in 9 months
USA / South Atlantic / Florida / Alva
Ultramarathon - 50 kilometers
Trail

Cottonmouth 100

November 11, 2017 Race day in 9 months
USA / South Atlantic / Florida / 32570
Ultramarathon - 100 miles
Trail

Upchuck 50K

November 11, 2017 Race day in 9 months
USA / East South Central / Tennessee / Chattanooga
Ultramarathon - 50 kilometers
Hilly Trail

Franklin Mountains Trail Run

50k
November 11, 2017 Race day in 9 months
USA / West South Central / Texas / El Paso
Ultramarathon - 25 kilometers

Rosaryville Veteran's Day 50k

November 11, 2017 Race day in 9 months
USA / South Atlantic / Maryland / Upper Malboro
Ultramarathon - 50 kilometers
Trail

NJ Trail Series One Day

NJ Trail Series One Day - 50K
November 11, 2017 Race day in 9 months
USA / Mid-Atlantic / New Jersey / Sussex County Fairgrounds
Ultramarathon - 50 kilometers

Silver Falls Trail Runs

50K Ultra
November 04, 2017 Race day in 8 months
USA / Pacific / Oregon / Silverton
Ultramarathon - 50 kilometers
Trail

Ragnar Relay Napa Valley

November 03, 2017 Race day in 8 months
USA / Pacific / California / San Francisco
Ultramarathon - 186.400 miles
Ragnar Relay Series Relay

Creek to River Relay

October 29, 2017 Race day in 8 months
USA / Mid-Atlantic / Pennsylvania / Perkiomenville
Ultramarathon - 29 miles
Relay

Cactus Rose

Cactus Rose 50 Mi Trail Run
October 28, 2017 Race day in 8 months
USA / West South Central / Texas / Bandera
Ultramarathon - 50 miles
Tejas Trails Trail

Cactus Rose

Cactus Rose 100 Mi Trail Run
October 28, 2017 Race day in 8 months
USA / West South Central / Texas / Bandera
Ultramarathon - 100 miles
UTMB Qualifier Tejas Trails Trail

"Running for the Bay!" Marathon

"Running for the Bay!" 50K
October 22, 2017 Race day in 8 months
USA / South Atlantic / Florida / Apalachicola Bay
Ultramarathon - 50 kilometers
Road Running Wheelchair

Bimbler's Bluff 50k

October 22, 2017 Race day in 8 months
USA / New England / Connecticut / Guilford
Ultramarathon - 50 kilometers
Road Running