Trail Running Calendar North Dakota 2026-2027

Trail ultramarathon in the Sheyenne National Grasslands near McLeod, North Dakota, with 25K, 50K and 100K options. The route passes prairie, forest pockets, and rolling sandhills.

Otter Creek Trail Festival brings mountain bike races and trail runs to Harmon Lake in Mandan, North Dakota on June 12 and 13, 2026. Expect cash prizes, chip timing, camping and post race food and swag.

A multi distance trail event on the Maah Daah Hey Trail near Medora, North Dakota, on July 24 and 25, 2026. Distances range from a 5K to a 116 mile ultra with aid stations, checkpoints, creek crossings and formal pacer rules.