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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.

Rockledge Rumble

Grapevine, TX, US · November 14, 2026 (in 28 days)
Registration open 31.5 miles19.3 miles9.6 miles

Rocky Raccoon 100 Endurance Trail Race

Huntsville, TX, US · February 6-7, 2027 (in 112 days)
Registration open 100 Mile100K

Rockys Backyard Ultra

Estes Park, CO, US · October 10-11, 2026 (7 days ago)
Ran · this year's race is done. Backyard Ultra

Rogue Gorge

Union Creek, OR, US · October 17-18, 2026 (today)
Registration closed 50.7 miles31.1 miles13.4 miles7.5 miles

ROO Race Series

Clancy, MT, US · June 25-26, 2027 (in 251 days)
Registration open 1 miles10K25K50K4.17 miles

Roosters Backyard Ultra

San Diego, CA, US · November 14, 2026 (in 28 days)
Registration open backyard

Rosaryville Veterans Day Trail Race

Upper Marlboro, MD, US · November 14, 2026 (in 28 days)
Registration open 30.88 miles11.88 miles

Rose Canyon Ultra

Herriman, UT, US · June 5, 2027 (in 231 days)
Registration open 49.8 miles29.4 miles18.8 miles

Round the Bay Relay and Ultra

Fort Walton Beach, FL, US · December 27, 2026 (in 71 days)
Registration open 36.8 miles

Rudolph & Roses

Tyler, TX, US · December 19, 2026 (in 63 days)
Registration open 6.29 miles100K20K30K50K

Rule the Roost

Chillicothe, OH, US · October 17, 2026 (today)
Registration open 12 hour7K

Run for Kids Challenge

Pelham, AL, US · May 8, 2027 (in 203 days)
Registration open 6.8 miles12hrs

Run Lovit

Hot Springs, AR, US · February 27-28, 2027 (in 133 days)
Registration open 100 Mile62.5 miles50K

Run Rabbit Run

Steamboat Springs, CO, US · September 17, 2027 (in 335 days)
On the calendar 100 Mile

Run the Red Desert

South Pass City, WY, US · September 26, 2026 (21 days ago)
Ran · this year's race is done. 30.8 miles18.5 miles

Run the River Ultra

Williamsburg, VA, US · December 5, 2026 (in 49 days)
Registration open 51.7 milesHalf Marathon50K

Run the River Ultra Challenge

Petal, MS, US · November 7, 2026 (in 21 days)
Registration open 6 Hour Solo

Run The Rock

Terrebonne, OR, US · November 7-8, 2026 (in 21 days)
Registration open 15 milesHalf Marathon50K

Run to Remember

Sykesville, MD, US · April 17, 2027 (in 182 days)
Registration open 31.5 miles15.75 miles5.25 miles8 Hour Challenge

Run Undead Ultra Trail Party

Pelham, AL, US · December 31, 2026 (in 75 days)
Registration open 100 Mile50 Mile100K25K50K

Run4Water Ultra Festival

Lebanon, TN, US · September 26, 2026 (21 days ago)
Ran · this year's race is done. 12H24H - Fri 6pm Start3H - 12pm Start3H - 8am Start5K6H84 Minutes for 84 D

RunFluent Christmas

Lutz, FL, US · December 12, 2026 (in 56 days)
Registration open Half Marathon4 miles7 hour7 hour 2 person relay

Running the Rose

Tyler, TX, US · January 23, 2027 (in 98 days)
Registration open 66 miles33 miles22 miles11 miles4.3 miles

Running with the Devil

Las Vegas, NV, US · June 26, 2027 (in 252 days)
Registration open 31 milesMarathonHalf Marathon6.2 miles3.1 miles

Rut Rogue 40s

Plum Branch, SC, US · February 7, 2027 (in 113 days)
Cancelled 40 miles40K50K
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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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