Extreme North Dakota Sandhills Ultra Run Experience

McLeod, United States • 25 Apr 2026

The Extreme North Dakota Sandhills Ultra Run Experience - END-SURE is a trail running event held in McLeod, North Dakota, featuring 25K, 50K, and 100K race options. The course traverses the Sheyenne National Grasslands section of the North Country Trail, southwest of Fargo, showcasing diverse terrain including wide open prairie, forested areas, and rugged rolling sandhills. This ultramarathon offers runners a scenic and challenging experience through North Dakota's unique landscape. As the state's first ultramarathon, it promises a memorable race atmosphere for participants seeking endurance trail running in a natural setting. Visit the organization's website for the most recent information.

Race information

100 km
100 Km
50 km
25 km
Visit the organization's website for the most recent information.
Trail runs nearby

The END-BACKYARD Ultra is a unique endurance running event held in McLeod, North Dakota. The race features a 4.17-mile (6.7 km) loop course, with all participants starting each lap together every hour. Runners must complete each lap within the hour to continue; those who fail to start on time are el..