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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.

The Barkley Fall Classic

Wartburg, TN, US · September 18, 2027 (in 336 days)
Registration open Marathon50K

The Barnyard Backyard Ultra

Erie, CO, US · October 24-25, 2026 (in 7 days)
Registration open Barnyard Backyard Ultra

The Bear 100 Mile Endurance Run

Logan, UT (start) / Garden City, UT (finish), US · September 24-25, 2027 (in 342 days)
On the calendar 100 Mile

The Bear Chase

Lakewood, CO, US · October 3-4, 2026 (14 days ago)
Registration open 62.2 miles50 Mile31.1 miles13.16 milesHalf Marathon6.16 miles3.12 miles

The Big 50

Pine Mountain, GA, US · May 2, 2027 (in 197 days)
Registration open 10K25K50K

The Big Alta

San Rafael, CA, US · March 19-21, 2027 (in 153 days)
Registration open 31 miles17.4 miles

The Big Alta 100K

Sausalito, CA, US · March 20, 2027 (in 154 days)
Scheduled 62.5 miles

The Big Deal at the Great Seal

Chillicothe, OH, US · May 1-2, 2027 (in 196 days)
Registration open 100 Mile100K20 miles5K

The Blood Run

Lennox, SD, US · September 4-6, 2026 (43 days ago)
Ran · this year's race is done. 12hrs24hrs36 Hour3hrs6hrs

The Bootlegger 100 Mile Trail Race

Flovilla, GA, US · March 20-21, 2027 (in 154 days)
Registration open 100 miles50 Mile12.31 miles

The Bracken

Brevard, NC, US · November 21, 2026 (in 35 days)
Registration open 31.33 miles15.66 miles7.5 miles

The Bull Mountain Epic

Dahlonega, GA, US · October 2, 2027 (in 350 days)
On the calendar Half Marathon50K

The Canyons Endurance Runs by UTMB

Auburn, California, US · April 22-25, 2027 (in 187 days)
Registration open 100K161K25K50K

The Cherokee

Tellico Plains, TN, US · July 17, 2027 (in 273 days)
On the calendar 24 miles130K70K

THE CONQUER

Dawsonville, GA, US · December 5, 2026 (in 49 days)
Registration open The Toughest Backyard Ultra

The Cove

Chickamauga, GA, US · March 13, 2027 (in 147 days)
Registration open 31.79 miles18.56 miles10K

The Cross-Connecticut Run for Mental Health Awareness

West Suffield, CT, US · September 12, 2026 (35 days ago)
Ran · this year's race is done. distances not checked yet

The Crunchwrap Crawl, 50Ks of regret!

Kennewick, WA, US · November 7, 2026 (in 21 days)
Registration open 42 miles50K

The Dark Side 8 Hour Ultra

Clarksburg, MD, US · March 6, 2027 (in 140 days)
On the calendar 8hrs

The Daydreamer

Patagonia, AZ, US · February 6, 2027 (in 112 days)
Registration open 34.8 miles19.7 miles13.2 miles6.1 miles

The Derby 50k

Ellerbe, NC, US · November 28, 2026 (in 42 days)
Registration open 31.5 miles

The Devils Gorge

Sapphire, NC, US · September 11, 2027 (in 329 days)
On the calendar 25K50K

The Dirt Circuit

Morristown, TN, US · September 19, 2026 (28 days ago)
Ran · this year's race is done. 12HR24HR3HR6HR6hr Ruck

The Endless Mile

Alabaster, AL, US · October 22-25, 2026 (in 5 days)
Registration open 31.063 miles27.055 miles12 Hour24 Hour48 Hour6 Hour72 Hour

The Enoree 100

Newberry, SC, US · February 20, 2027 (in 126 days)
Registration open 100 Mile50 Mile
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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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