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.

Get Outside 8 Hour

Smithfield, VA, US · November 28, 2026 (in 42 days)
Registration open 10K8hrsHalf GO (4 Hours)Ruck 4 HourRuck 8 Hour

Gila 100

Silver City, NM, US · October 17-18, 2026 (today)
Registration open 100 Mile55.29 miles

Girl Scout Island Ultra

Savannah, GA, US · November 21-22, 2026 (in 35 days)
Registration open 100 miles62.5 miles31.25 miles6.25 miles

Glacier Hills Ultra 50K

Canton, SD, US · November 7, 2026 (in 21 days)
Registration open 20K30K50K

Go Big

Hilo, HI, US · December 31, 2026 (in 75 days)
Registration open 260 miles100 Mile50 Mile50K

GOATZ Trail Runs

Omaha, NE, US · October 18, 2026 (tomorrow)
Registration closed 10.5 miles21 miles5 miles50 Mile50K

Goliaths 50

Marble Falls, TX, US · February 20, 2027 (in 126 days)
Registration open 50 Mile20 miles10.21 miles10K50K5K

Gone Loco

Athens, TN, US · February 14, 2027 (in 120 days)
Registration open 11 miles50K

Goose Bumps 6 & 24 Hour Run

Stoddard, WI, US · September 18-19, 2026 (29 days ago)
Ran · this year's race is done. 24HR6HR

Gorge Waterfalls 100K

Cascade Locks, OR, US · April 17, 2027 (in 182 days)
Registration open 62 miles30K50K

Government Peak Endurance 100 & 50 Mile

Palmer, AK, US · September 6, 2026 (41 days ago)
Cancelled 100 Mile50 Mile

Grand Canyon of the South Ultras

Breaks, VA, US · September 12, 2026 (35 days ago)
Registration open 50K20K10K

Grand Ridge

Issaquah, WA, US · November 7, 2026 (in 21 days)
Registration open 31.56 miles27.47 miles14.29 miles5.19 miles

Grand Valley Backyard

Loma, CO, US · October 2, 2027 (in 350 days)
Registration open Grand Valley Backyard

Granite Mountain Grind

Prescott, AZ, US · September 26, 2026 (21 days ago)
Ran · this year's race is done. 31.8 miles

Grasslands Trail Run

Alvord, TX, US · March 20-21, 2027 (in 154 days)
Registration open 100.6 miles50 MileMarathonHalf Marathon15K

Grayson Highlands 50 Mile / 50k / 25k

Mouth of Wilson, VA, US · May 1-2, 2027 (in 196 days)
Registration open 50.5 miles30 miles15 miles8.01 miles

Great Eastern Endurance Run GEER

Lyndhurst, VA, US · November 7, 2026 (in 21 days)
Cancelled 40.6 miles20.2 miles11.1 miles

Great Lawn Backyard Ultra

Norwalk, CT, US · November 14, 2026 (in 28 days)
Registration open Backyard Ultra

Great Shasta Rail Trail

McCloud, CA, US · March 27, 2027 (in 161 days)
Registration open 10K30K50K

Green Monster Trail Challenge

Wellsboro, PA, US · October 11, 2026 (6 days ago)
Ran · this year's race is done. 32.2 miles16.6 miles9.3 miles

Griffith Park Trail Marathon

Los Angeles, CA, US · November 21, 2026 (in 35 days)
Registration open 30.7 milesMarathon17.9 miles13.7 miles6.3 miles

Grind on the Grid Backyard Ultra

Wingate, IN, US · April 17, 2027 (in 182 days)
Registration open Backyard Ultra

Grindstone Trail Running Festival by UTMB

Mount Solon, VA, US · September 24, 2027 (in 342 days)
On the calendar 167.4K100K21K50K

Grit & Grace Trail Race

Reidsville, NC, US · February 27, 2027 (in 133 days)
Registration open 12H6H Ruck
Page 12 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