Umstead 100 Mile Endurance Run

APR
3-4
2027
A multi-distance endurance event in William B. Umstead State Park offering 100 miles (30 hour limit) and a 50 mile option, held April 3-4, 2027 as the 32nd edition.
3-4 Apr 2027
100 miles 50 miles

Always double-check with the organizer's website! This page may contain affiliate links.

About the race

The Umstead 100 is an annual endurance running event held in William B. Umstead State Park in Raleigh, North Carolina. The event is organized by the North Carolina Ultra Running Association and in 2027 will be held as the 32nd edition. The event offers a full 100 mile course and a 50 mile option.

Entrants have a 30 hour time limit to complete the 100 mile distance. The race webpage includes information on registration, course maps, accommodations (hotels, cabins, tents), volunteering, training resources, health guidance, weather, awards, results, and event photos. For 2027 the event dates are April 3-4 and initial registration plus a second chance lottery have closed; the race is full. The organizer maintains a participant list for the year. The event listing notes awards and results from previous years and records event statistics.

Sponsors and park support are acknowledged on the event information pages. Visit the organization's website for the most recent information.

Events nearby

A Camp Agapé 5K trail run and virtual event on November 14, 2026 with brunch, basket raffles and proceeds supporting ACE environmental education.
A Thanksgiving Day trail event in Chapel Hill with 2 mile, 5K and 10K courses, plus a free kids race and post-race pie.
Post Thanksgiving trail run at Briar Chapel offering 5K and 10K single track courses, repurposed vintage swag, a free kids race, and a post race party.
Thanksgiving weekend running event in Cary with in-person and virtual 5K, 10K, 13.1 options plus Kids in Strollers, an Ultra Series, medals, hats, awards and bus transport.
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.