US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

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1,361 races

Zumbro 100

Zumbro Midnight 50 Mile
April 08, 2017 The race has already taken place.
USA / West North Central / Minnesota / Zumbro Falls
Ultramarathon - 50 miles
Trail Night

Youngstown Ultra Trail Classic

Youngstown Ultra Trail Classic 50K
September 17, 2016 The race has already taken place.
USA / East North Central / Ohio / Youngstown
Ultramarathon - 50 kilometers
Trail

Yeti Snakebite 50/50

August 27, 2016 The race has already taken place.
USA / South Atlantic / Georgia / Lithia Springs
Ultramarathon - 50 kilometers
Trail

Yellowstone-Teton Endurance Race

Yellowstone-Teton 50 Mile Endurance Race
No race in 2016
USA / Mountain Region / Montana / West Yellowstone
Ultramarathon - 50 miles
Road Running Dreamchasers

Yellowstone-Teton Endurance Race

Yellowstone-Teton 100-Mile Endurance Race
No race in 2016
USA / Mountain Region / Montana / West Yellowstone
Ultramarathon - 100 miles
Road Running Dreamchasers

Yankee Winter Trail Run

Yankee Winter Trail 50K
January 07, 2017 The race has already taken place.
USA / East North Central / Michigan / Middleville
Ultramarathon - 50 kilometers
Trail

Yankee Springs Trail Run

Yankee Springs Trail Double Marathon
June 03, 2017 Race day in about 1 month
USA / East North Central / Michigan / Middleville
Ultramarathon - 84.390 kilometers
Trail

Yamacraw 50k/10k

Yamacraw 50k
April 08, 2017 The race has already taken place.
USA / East South Central / Kentucky / Stearns
Ultramarathon - 50 kilometers
Charity Trail

Yakima Skyline Rim 50k & 25k

Yakima Skyline Rim 50k
April 22, 2017 The race has already taken place.
USA / Pacific / Washington / Ellensburg
Ultramarathon - 50 kilometers
Trail Rainshadow Running

XTERRA Spring Eagle

XTERRA Spring Eagle 50K
April 29, 2017 The race has already taken place.
USA / Pacific / Washington / Soaring Eagle Regional Park
Ultramarathon - 50 kilometers
Northwest Trail Runs Hilly Trail

Xterra Myrtle Beach Trail Run

Xterra Myrtle Beach 50 km Trail Run
April 22, 2017 The race has already taken place.
USA / South Atlantic / South Carolina / Horry County Bike & Run Park, Myrtle Beach
Ultramarathon - 50 kilometers
Trail

XTERRA Hickory Knob Trail Runs

XTERRA Hickory Knob Trail 50K
October 15, 2016 The race has already taken place.
USA / South Atlantic / South Carolina / Hickory Knob State Park, McCormick
Ultramarathon - 50 kilometers

Woolley Trail Runs

Woolley Trail 50K
February 18, 2017 The race has already taken place.
USA / Pacific / Washington / Sedro-Woolley
Ultramarathon - 50 kilometers
Trail

Woodside Ramble

Woodside Ramble 50K
December 17, 2016 The race has already taken place.
USA / Pacific / California / Woodside
Ultramarathon - 50 kilometers
Walk Trail Inside Trail Racing

Woodside Crossover /Purisima Creek Crossover

Woodside Crossover 50K
April 15, 2017 The race has already taken place.
USA / Pacific / California / Woodside
Ultramarathon - 50 kilometers
Walk Trail Inside Trail Racing