The Pilgrimage
Mack, United States • 3 May 2026
Event Overview
The Pilgrimage is a timed ultramarathon with a unique format, taking place in the high desert of western Colorado near Mack. The event lasts for 150 hours. Participation is limited to 45 runners.
Course Details
The course consists of five distinct, unpaved loops that start and finish at a central "Home Base." The routes use single track, dirt roads, and ATV tracks. The combined distance for one complete set of all five loops is approximately 55 miles with about 5,908 feet of elevation gain. Individual loop distances range from 6.7 to 12.8 miles.
The five loops are completed in sequences called "Journeys." The order of loops changes for each journey, with formats including a pre-determined order, a random draw, and a runner-chosen order. Runners must complete at least four full journeys (approximately 220 miles) within the time limit to avoid a DNF.
Rules and Format
The race emphasizes self-reliance and solitude. Pacers are never allowed. The event has two divisions: crewed and uncrewed (solo). Crew for the crewed division is only permitted at the Home Base. All runners must navigate using provided GPX files, as course markings may change.
Amenities and Logistics
A single aid station at the Home Base provides hot food, typical runner snacks, and drinks. The event is cupless, providing one collapsible cup per registrant. On-site amenities include a portable shower, restrooms, and a communal sleep tent with cots. Runners can bring RVs or tents, though there are no utility hookups. Visit the organization's website for the most recent information.