Umstead 100 Mile Endurance Run

APR

3-4

2027

A 100 mile trail endurance run through William B. Umstead State Park in Raleigh, NC, with a 30 hour cutoff and a 50 mile option. The event is scheduled for April 3 to 4, 2027 and opens registration September 16, 2026.

3-4 Apr 2027

Morrisville, North Carolina

Website

100 miles 50 miles

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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.

100 mi

100 Mile Endurance Run

50 mi

50 Mile Option