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Ultras

Ultras, and what they ask of you

Cutoffs, crew access, drop bags, and where your people can park. Nothing here needs an account.
Free, and always will be. NavRun makes money from race-day planning for runners who want it, never from this. Ultras change constantly, sometimes the morning of. Always confirm with the race director and the official website before you rely on anything here.
Not sure which one yet? Watch one first. Course previews and films, made by people who were out there.
883 races

Every race we hold Twenty five at a time. Search a race by its name, or by the name it used to have.

11th Hour Bear Creek Backyard Ultra

Lakewood, CO, US · October 31, 2026 (in 15 days)
Full Backyard Ultra

12 Hour - Adventure Trail Run

Triangle, VA, US · October 3, 2026 (13 days ago)
Postponed 12hrs

24 Hours at Lake Z

Dahlonega, GA, US · September 5, 2026 (41 days ago)
Ran · this year's race is done. 12 Hour24 Hour6 Hour

24 Hours of Palmer Lake

Palmer Lake, CO, US · September 25, 2027 (in 344 days)
Registration open 24 Hour

8 Hours at the Farm

Brookfield, CT, US · November 1, 2026 (in 16 days)
Registration open 4 Hour5K8 Hour

8 Hours of Ode | Ode in the Snow

Holly, MI, US · January 16, 2027 (in 92 days)
Registration open 4.2 miles8 Hour10K5K

963 Beulah Challenge

Wildwood, MO, US · February 6, 2027 (in 113 days)
On the calendar 3hrs6hrs9hrs

A Day in the Park

Lebanon, OH, US · November 7-8, 2026 (in 22 days)
Registration open 24hrs6hrs

A Stroll in the Park

Canton, GA, US · October 3, 2026 (13 days ago)
Ran · this year's race is done. 12hrs8hrs

A.W. Marion Trailfest

Circleville, OH, US · June 5-6, 2027 (in 232 days)
Registration open Half Marathon4.5 miles24 hoursDay 12 HourNight 12 Hour

Above the Clouds Ultra

Woodland Park, CO, US · October 3, 2026 (13 days ago)
Ran · this year's race is done. 28.66 miles6.9 miles

Across Florida 200

St. Augustine Beach, FL, US · November 11-15, 2026 (in 26 days)
Registration open 200 miles

Across the Years

Peoria, AZ, US · December 28 to January 3, 2027 (in 73 days)
Registration open 200 miles100 MileMarathon100K12 Hour24 Hour48 Hour6 Day6 Hour72 HourLast Person Standing

All Day at Holloway

Lakeland, FL, US · February 27, 2027 (in 134 days)
Registration open 10K30K50K

American Bottoms

Columbia, IL, US · March 20, 2027 (in 155 days)
Registration open 113.6 miles56.8 miles

American Heroes Run

Longmont, CO, US · September 11-12, 2026 (35 days ago)
Ran · this year's race is done. 100 Mile9.11 miles24 hrs6 hour open start9 hrs & 11 min

Angela Ivory Memorial Runs

Felton, DE, US · January 9-10, 2027 (in 85 days)
Registration open 100 Mile24hrs50K

Angeles Crest 100 Mile Endurance Run

Altadena, CA, US · October 2, 2027 (in 351 days)
Lottery open 100.8 miles100K

Angry Tortoise 25K/50K

Bryceville, FL, US · February 20, 2027 (in 127 days)
Registration open 25K50K

Antelope Canyon Ultras

Page, AZ, US · March 6, 2027 (in 141 days)
Registration open 51.7 miles34.2 miles19.7 miles13.2 milesHalf Marathon

Anza Borrego Cuyamaca 50 Mile Run

Julian, CA, US · December 5, 2026 (in 50 days)
Registration open 50 Mile

Appalachian 200 / 100

Franklin, NC, US · March 10-14, 2027 (in 145 days)
Full 200 miles100 Mile

Arches Marathon

Moab, UT, US · October 2, 2027 (in 351 days)
On the calendar MarathonHalf Marathon15K50K

Arches Ultra

Moab, UT, US · January 30, 2027 (in 106 days)
Registration open 50 Mile32 miles13 miles5.5 miles

Arizona Monster 300

Superior, AZ, US · March 29 to April 4, 2027 (in 164 days)
Registration open 300.5 miles
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How this gets better. Every race here was read off the race's own pages and sourced fact by fact. Where nobody has checked something, it says so instead of guessing.
See something wrong or out of date? Open the race and use the form at the bottom of its page.
Are you the race director? The same page has a form that comes straight to us, and we write back.
Anything else: [email protected]
Got one on the calendar?

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