Loading...
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.

Calero Trail Run - Winter

San Jose, CA, US · December 5, 2026 (in 50 days)
Registration open 31 miles26 miles16.03 miles13 miles9 miles6.27 miles3.1 miles1 miles

Camp Croft 50K, 50 Miler, and 100 Miler

Spartanburg, SC, US · April 10, 2027 (in 176 days)
Registration open 100.5 miles50.25 miles30.15 miles10 miles

Canal Corridor Endurance Run

Akron, OH, US · October 10-11, 2026 (6 days ago)
Ran · this year's race is done. 100.65 miles50.25 miles50.05 miles

Canebrake 200 Miler and 100 Miler

Lithia Springs, GA, US · March 22-26, 2027 (in 157 days)
Registration open 200 miles100 Mile

Caney Fork Ultra

Sparta, TN, US · September 12, 2026 (34 days ago)
Ran · this year's race is done. 49.7 miles

Cannonball Run

Ehrhardt, SC, US · April 9-11, 2027 (in 175 days)
Registration open 34 HoursLast Man Standing

Canyon De Chelly Ultra

Navajo Reservation, AZ, US · October 10, 2026 (6 days ago)
Ran · this year's race is done. distances not checked yet

Canyonlands Ultra

Moab, UT, US · October 24, 2026 (in 8 days)
Registration open 62 miles50 Mile31 miles26 miles13 miles9 miles

Cape Fear 24 Hour

Lillington, NC, US · October 10, 2026 (6 days ago)
Ran · this year's race is done. 24hrs

Cape Mountain

Florence, OR, US · June 5, 2027 (in 232 days)
On the calendar 31.2 miles15.23 miles6.38 miles

Capital Backyard Ultra

Lorton, VA, US · March 20, 2027 (in 155 days)
Waitlist only Last Runner Standing

Capitan Mountain 34 Hour

Capitan, NM, US · April 16-17, 2027 (in 182 days)
On the calendar 34hrsHOTFOOT TEDDY 12HOURRABBIT 6HOUR

Carkeek 12 Hour

Seattle, WA, US · October 24, 2026 (in 8 days)
Registration open 12HR6HR

Carolina Thread 8/4Hr

Rock Hill, SC, US · May 8, 2027 (in 204 days)
Registration open 4hrs8hr

Cascade Crest 100

Easton, WA, US · July 16, 2027 (in 273 days)
On the calendar distances not checked yet

Caspers Trail Races

San Juan Capistrano, CA, US · October 31, 2026 (in 15 days)
Full 31.1 miles26.7 miles20.7 miles13 miles6.3 miles

Cave Creek Thriller

Cave Creek, AZ, US · October 17, 2026 (tomorrow)
Registration closed 31.2 miles15.44 miles7.3 miles3.6 miles

Caveman Challenge at Waterloo Lake

Denison, TX, US · October 10, 2026 (6 days ago)
Ran · this year's race is done. 10K50K5K1.5 miles

CCC (Courmayeur-Champex-Chamonix)

Courmayeur, Italy (start) / Chamonix, France (finish), Aosta Valley, IT · August 28-29, 2026 (49 days ago)
Scheduled 101K

Centurion Ultra Trail Event

Stratford, CT, US · June 24-27, 2027 (in 251 days)
Full 72 Hours

Chabot/Redtail Ridge Trail Run

Castro Valley, CA, US · February 20, 2027 (in 127 days)
Registration open 31.4 miles23 miles12.7 miles6.3 miles3.2 miles

Charleston Itty Bitty 50

Mount Pleasant, SC, US · December 20, 2026 (in 65 days)
Full 50 Mile

Cherry Hill Farm Ultra

Gorham, ME, US · September 5, 2026 (41 days ago)
Ran · this year's race is done. 31.2 miles15.6 miles

Cheyenne Mountain Trail Race

Colorado Springs, CO, US · April 24, 2027 (in 190 days)
Registration open 7 miles4 miles25K50K

Chianti Ultra Trail by UTMB

Radda in Chianti, Toscana, IT · March 18-21, 2027 (in 153 days)
Registration open 123K73K10K
Page 5 of 36
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?

NavRun builds your pacing from your own training, then turns it into a plan your crew can follow: when to leave and where to park.

Start free