Maah Daah Hey Trail Run(s)

Maah Daah Hey Trailrun : July 24-25, 2026

The Maah Daah Hey Trailrun is a series of trail races on the Maah Daah Hey Trail in the North Dakota Badlands near Medora. The event offers several distances:

• 3.1+ Miles
• 6.2+ Miles
• 13.1 Miles
• 26.2+ Miles
• 58 Miles
• 116 Miles

Elevation gain varies by distance, from mostly downhill for the shortest course up to about 11,968 feet for the 116-mile distance. Race starts are scheduled on July 24-25, 2026.

Course, support and rules

The course is continuous single-track with mixed surfaces including dirt, clay, sandstone and scoria. Butte tops have prairie grasslands and there is minimal tree cover. There are multiple creek crossings on most distances; the 116-mile course no longer crosses the Little Missouri River. Aid stations appear approximately every 25 miles and there are about nine road checkpoints where the trail meets major back roads. The 100-mile category has a 36-hour cutoff.

Shuttle service is provided to starting areas for the 10k, half marathon and marathon. Participants in the 50-, 75- and 100-mile races must provide their own transport to the start and have a plan for pickup if they drop. Pacers are allowed for the ultramarathon distances under specified rules: foot only, must register, be at least 18 and wear an official pacer bib. Finish line provisions include snacks, drinks and awards; finishers receive medals for shorter distances and belt buckles for ultradistance finishers. Visit the organization's website for the most recent information.