Trail Running calendar near Mackay 2026-2027

Trail ultramarathons in Challis, Idaho offering 32K, 55K and 108K courses with mountain climbs, mixed trail surfaces and multiple aid stations. Crew access and a final mile into town are part of the race experience.

Set in Idaho's rugged Pioneer Mountains, the Standhope Ultra Challenge features high-altitude 100-mile, 60K, and 30K trail races. With remote, technical terrain and significant elevation gain, it's a demanding backcountry adventure. Finishe..

Standhope 100 is a 100 mile mountain trail race in Idaho on 25 to 26 July 2026, with over 23,000 feet of climbing through the Pioneer Mountains, long sections between aid, spot trackers, and remote backcountry conditions.

Trail half marathon and 55K ultra at Oregon Gulch near Ketchum, Idaho, featuring forested single-track loops, steep climbs, stocked aid stations, and free race photos.