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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.

S.O.S.

Middleburg, FL, US · September 18, 2027 (in 336 days)
Registration open 12 hours Ruck12hrs3 hours Ruck3hrs6 hours Ruck6hrs9K

Sage Burner Trail Race

Gunnison, CO, US · October 3, 2026 (14 days ago)
Ran · this year's race is done. 30.8 miles17.1 miles9 miles

Saguaro Showdown

Mesa, AZ, US · January 23, 2027 (in 98 days)
Registration open Backyard 24Ruck EventRun Event

Salem 50k

Salem, OR, US · December 6, 2026 (in 50 days)
Registration open 9.99K29.97K49.95K

Salt Flats Endurance Runs

Wendover, UT, US · April 30 to May 1, 2027 (in 195 days)
Registration open 100 Mile50 Mile106.5K10K50K5K

Salt Lake Foothills Trail Races

Salt Lake City, UT, US · May 22, 2027 (in 217 days)
Registration open 51.34 miles30.41 miles13.68 miles6.5 miles2K

Sams Last Stand

Cleveland, TX, US · February 27, 2027 (in 133 days)
Registration open 96.1 miles

Samsons Revenge

Estes Park, CO, US · May 22, 2027 (in 217 days)
Registration open 6.62 miles25K50K

San Diego 100

Julian, CA, US · April 30 to May 1, 2027 (in 195 days)
Scheduled 100.6 miles

San Diego 200

Escondido, CA, US · October 23-26, 2026 (in 6 days)
Registration open 200 miles

San Juan Solstice 50 Mile Run

Lake City, CO, US · June 19, 2027 (in 245 days)
On the calendar distances not checked yet

San Tan Scramble

Queen Creek, AZ, US · January 9, 2027 (in 84 days)
Registration open 31.7 miles16.2 miles10.6 miles5.7 miles3.1 miles

Sanders Saunter Charity Race

Lawrence, KS, US · November 7, 2026 (in 21 days)
Registration open 10K25K50K

Sandstone Sixer

Larkspur, CO, US · November 7, 2026 (in 21 days)
Registration open 6hrs

Sandy Bottom 8-Hour Training Run

Hampton, VA, US · January 9, 2027 (in 84 days)
Registration open 4hrs5K8 Hour

Sasquatch Shuffle

McCall, ID, US · October 10, 2026 (7 days ago)
Cancelled distances not checked yet

Savannah Ultra Urban 50k Run

Savannah, GA, US · November 28, 2026 (in 42 days)
Waitlist only 50K

Sawmill Ultra

Mt. Charleston, NV, US · June 5, 2027 (in 231 days)
Registration open 38.45 milesMarathon19.23 milesHalf Marathon10K5K

Schwendiman T3 50

Idaho Falls, ID, US · September 5, 2026 (42 days ago)
Ran · this year's race is done. distances not checked yet

Screaming Monkey

Keithville, LA, US · November 7, 2026 (in 21 days)
Registration open 100 Mile62 miles10K25K50K

Sea to Sky

Jenner, CA, US · May 1-31, 2027 (in 196 days)
Registration open 15.55 miles100K50K75K

Sean OBrien 100K/50M/50K/26.2/30K

Calabasas, CA, US · January 30, 2027 (in 105 days)
Registration open 61.7 miles49 miles32.1 miles27.2 miles19.4 miles

Sedona Canyons 125

Jerome, AZ, US · May 4, 2027 (in 199 days)
Waitlist only 125 miles

Seneca Sky Ultra

Castile, NY, US · June 19, 2027 (in 245 days)
On the calendar 45.7 miles

Shake Your Trail Feather Trail Run

Charleston, IL, US · October 16-17, 2026 (yesterday)
Registration open 100K16 miles50K5K8 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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