Umstead 100 Mile Endurance Run

Morrisville, United States • 3-4 Apr 2027

Umstead 100 Mile Endurance Run

The Umstead 100 Ultra is a long-distance trail run held in William B. Umstead State Park in Raleigh, NC. The event is an annual endurance race; the 2027 running is listed as the 32nd edition. Runners are given 30 hours to complete the full course.

Race distances include:

  • 100 mile endurance run
  • 50 mile option

The event returns April 3 to 4, 2027. Registration opens September 16, 2026 at 8pm. The race is organized under the North Carolina ultra running community and is supported by park staff and multiple sponsors. In 2026 the event reported participation support from 361 volunteers.

There is a memorial award program established in honor of the race founder that awards entry to four active duty armed services members. Results, awards, course maps, lodging information, weather, and race statistics are maintained for participants and followers. The course runs on trails within William B. Umstead State Park in Raleigh, North Carolina. Visit the organization's website for the most recent information.

Race information

100 mi
100 Mile Endurance Run
50 mi
50 Mile Option
Visit the organization's website for the most recent information.
Trail runs nearby

Trail races of 5.1 and 10.1 miles at Harris Lake County Park on July 18, 2026. Courses feature lakeside single-track, a wide dirt road start for easier passing, frequent aid stations, chip timing, and a 300 runner limit.

Scale 110 flights of stairs in downtown Raleigh to honor the heroes of 9/11. This symbolic climb at the former Wells Fargo Tower welcomes first responders and civilians for a meaningful memorial event.

A community event at Herndon Park using the American Tobacco Trail with a 5K, a 1 mile fun run and a virtual Sleep In Superhero option. Proceeds support outreach and education on organ eye and tissue donation in North Carolina.

Test your limits on a USATF certified asphalt loop in Lillington. This supported endurance event features a lit course at night and convenient trackside camping for a personalized running experience.

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