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Ultramarathons Across the US

Find 50K, 50-mile, 100K, and 100-mile ultramarathons. The definitive US ultra running event directory.

Showing a selection of 85 upcoming events

Browse Ultramarathons by State

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Upcoming Ultramarathons

Last Stand 1776 Backyard Ultra
Ultra

Last Stand 1776 Backyard Ultra

June 13, 2026
Midlothian, VA
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Ultra

Western States 100

Olympic Valley, CA

Ultra

Western States 100

June 15, 2026
Olympic Valley, CA
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Ultra

Bears Ears Ultra

Monticello, UT

Ultra

Bears Ears Ultra

June 20, 2026
Monticello, UT
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Ultra

Bears Ears Ultra

Monticello, UT

Ultra

Bears Ears Ultra

June 20, 2026
Monticello, UT
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Ultra

Tiger Peak Challenge

Issaquah, WA

Ultra

Tiger Peak Challenge

June 20, 2026
Issaquah, WA
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Ultra

Sparks Biggest Little Ultra

Sparks, NV

Ultra

Sparks Biggest Little Ultra

June 20, 2026
Sparks, NV
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Ultra

Sparks Biggest Little Ultra

Sparks, NV

Ultra

Sparks Biggest Little Ultra

June 27, 2026
Sparks, NV
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Vulture Vista Ultra
Ultra

Vulture Vista Ultra

June 27, 2026
Greencastle, IN
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Gorge Ultra Distance
Ultra

Gorge Ultra Distance

July 12, 2026
Stevenson, WA
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Ultra

Hardrock 100

Silverton, CO

Ultra

Hardrock 100

July 15, 2026
Silverton, CO
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CandleLight 12/24 Hour - Overnight Ultra and Relays
Ultra

CandleLight 12/24 Hour - Overnight Ultra and Relays

July 18, 2026
Rush, NY
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Ultra

Coastal Plains Relay

Richmond, TX

Ultra

Coastal Plains Relay

July 18, 2026
Richmond, TX
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JMC Running Co: 4-Hour Relay & Solo-Ultra Challenge
Ultra

JMC Running Co: 4-Hour Relay & Solo-Ultra Challenge

July 18, 2026
Phoenixville, PA
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Ultra

QD50: Duel at the creek

Louisville, KY

Ultra

QD50: Duel at the creek

July 19, 2026
Louisville, KY
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Washington Island Ultra
Ultra

Washington Island Ultra

July 23, 2026
Washington Island, WI
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Hawaii Kai Ultra Run XTreme 2026
Ultra

Hawaii Kai Ultra Run XTreme 2026

July 25, 2026
Honolulu, HI
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Last Herron Standing- Backyard Ultra
Ultra

Last Herron Standing- Backyard Ultra

August 1, 2026
Kalispell, MT
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Anchor Down Ultra
Ultra

Anchor Down Ultra

August 7, 2026
Bristol, RI
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Kennekuk Road Runners - Howl at the Moon 8/4 hour Ultra
Ultra

Kennekuk Road Runners - Howl at the Moon 8/4 hour Ultra

August 8, 2026
Danville, IL
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Ultra

Larrabee Lakes

Bellingham, WA

Ultra

Larrabee Lakes

August 8, 2026
Bellingham, WA
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Ultra

Last Buckeye Standing Backyard Ultra

Galena, OH

Ultra

Last Buckeye Standing Backyard Ultra

August 8, 2026
Galena, OH
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Ultra

Leadville Trail 100 Run

Leadville, CO

Ultra

Leadville Trail 100 Run

August 15, 2026
Leadville, CO
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Ultra

Tour De Tolerance

Santa Teresa, NM

Ultra

Tour De Tolerance

August 16, 2026
Santa Teresa, NM
Details →
Dog Days ULTRA
Ultra

Dog Days ULTRA

August 22, 2026
Missoula, MT
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Find ultramarathons near you →
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Frequently asked questions

What is an ultramarathon?▾
An ultramarathon is any race longer than the standard marathon distance of 26.2 miles. Common ultra distances are 50K (31 miles), 50 miles, 100K (62 miles), and 100 miles. Most ultras take place on trails.
What are the most famous ultramarathons in the US?▾
Western States 100 is the most prestigious, followed by Leadville Trail 100, Hardrock 100, and UTMB Canyons. The JFK 50 Mile is the oldest US ultra, running since 1963. Find all of these on RACE.
How do I train for my first ultra?▾
Most runners build up to their first 50K after completing a marathon. Training typically spans 16-24 weeks with weekly mileage of 40-60 miles, including back-to-back long runs on weekends to simulate race-day fatigue.
Do I need trail experience for an ultramarathon?▾
While many ultras are on trails, some are on roads or mixed terrain. For trail ultras, practice running on uneven surfaces and hills. A 50K on a relatively flat trail is a great first ultra for road runners making the transition.

Explore Other Endurance Sports

Running Races

Running Events

Marathons

26.2 miles of grit

Half Marathons

The perfect 13.1

5K Races

Fast, fun, for everyone

10K Races

The next step up

Triathlons

Swim, bike, run

Obstacle Course Races

Mud, walls, glory

Cycling Events

Road, gravel, gran fondo

Swimming Events

Open water awaits

Trail Running

Dirt over pavement

Relay Races

Run it together