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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.

Coo-Wah-Chobee 50k-25k-5k

Venice, FL, US · January 30, 2027 (in 106 days)
Registration open 25K50K5K

Copper Corridor

Superior, AZ, US · February 27, 2027 (in 134 days)
Registration open 30.1 miles20.2 miles10.3 miles7.7 miles

Copper Kings 100

Butte, MT, US · June 25-26, 2027 (in 252 days)
On the calendar 100 Mile

Cow Ford 100 / 50 Miler

Jacksonville, FL, US · March 20, 2027 (in 155 days)
Registration open 100 Mile51.24 miles

Cowboy 200

Norfolk, NE, US · September 24-27, 2027 (in 343 days)
Registration open 200 miles100 Mile

Cowboy YETI

Bastrop, TX, US · January 23, 2027 (in 99 days)
Registration open 12.59 miles4.02 miles100K40K60K

Coyote Two Moon

Ojai, CA, US · April 30 to May 2, 2027 (in 196 days)
Registration open 100.23 miles63.89 miles54.51 miles33.89 miles17.92 miles6.37 miles

Coyote Ugly 30k & 50k

Ellijay, GA, US · March 6, 2027 (in 141 days)
Registration open 30 miles19.1 miles

Crater Trail Run

Decorah, IA, US · June 5, 2027 (in 232 days)
On the calendar 31.1 miles15.5 miles6.3 miles3.2 miles1 miles

Creede Mountain Run

Creede, CO, US · September 5, 2026 (41 days ago)
Ran · this year's race is done. 22 miles12 miles2 miles50K

Crested Butte Ultra

Crested Butte, CO, US · September 25, 2027 (in 344 days)
On the calendar 50 Mile35K55K

Croom Zoom

Brooksville, FL, US · January 2, 2027 (in 78 days)
Registration open 20 miles10 miles50K

Crowell Hilaka Trail Run

Richfield, OH, US · September 13, 2026 (33 days ago)
Ran · this year's race is done. distances not checked yet

Crown King Scramble

Phoenix, AZ, US · March 20, 2027 (in 155 days)
Registration open 31 miles

Crown Stub 100

Buxton, OR, US · April 24-25, 2027 (in 190 days)
Registration open 100.2 miles

Cruel Jewel 100

Blue Ridge, GA, US · May 14-16, 2027 (in 210 days)
Registration open 100 Mile

Cruel Jewel 50

Blue Ridge, GA, US · May 15, 2027 (in 211 days)
Registration open 57.9 miles

Crystal Springs Ultra Races

Wytheville, VA, US · August 14, 2027 (in 302 days)
On the calendar 36 miles24 miles12 miles4 miles3 hour (Crystal Light)

Cuyamaca 100k Endurance Run

Descanso, CA, US · October 3-4, 2026 (13 days ago)
Full 62.8 miles

Dam Yeti 50

Abingdon, VA, US · June 5-6, 2027 (in 232 days)
On the calendar 50.2 miles33.9 miles15.3 miles

Dana Peak Trail Run

Harker Heights, TX, US · October 2, 2027 (in 351 days)
On the calendar 12.9 miles100K10K50K

Dark Anchor

Jekyll Island, GA, US · January 29-30, 2027 (in 105 days)
On the calendar 34HRS

Dark Divide Trail Races

Randle, WA, US · September 3, 2027 (in 322 days)
Registration open 100 Mile15 miles50K

DC Peaks 100

North Salt Lake, UT, US · October 2-3, 2026 (14 days ago)
Ran · this year's race is done. 100 Mile99.91 miles

DC Peaks 50

Kaysville, UT, US · October 3, 2026 (13 days ago)
Ran · this year's race is done. 50 Mile55K25K
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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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