Chase the Moon

JUN
27
2026
Run under the full moon in Colorado. This overnight event offers solo ultramarathon distances and team relays on rolling dirt trails. A unique 100-mile challenge with a cash prize is available for 3-person teams.
Sat 27 Jun 2026
50k 5-Person Relay 6-Hour Solo 3-Hour Solo 12-Hour Solo

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Event Overview

Chase the Moon is a 12-hour overnight endurance run that takes place under a full moon. It offers solo and team relay formats. The event is held in the Highlands Ranch Backcountry Wilderness area near Mountain Vista High School in Highlands Ranch, Colorado.

Distances and Formats

The event features several race options:

  • Solo: 12-hour, 6-hour, 3-hour, and 50K distances.
  • Team Relay: 3-person and 5-person divisions.

Course and Terrain

The primary course is a 10.3-mile loop. The route is approximately 98% dirt trail with 870 feet of elevation gain per lap. The terrain is described as rolling with minimal technical difficulty and wide-open, exposed views. All runners are required to carry a headlamp or handheld light source. The course is marked with flags, reflective tape, and signs.

Aid Stations

Two aid stations support the course: the Outlaw Aid Station and the Start/Finish area. They provide hydration (water, Tailwind, soda) and food (sweet and salty snacks, fruit, bean rollups, PB&J).

Rules and Amenities

Crew support is only permitted at the Start/Finish area. Pacers are not allowed. Runners and teams have a designated area at the Start/Finish for personal gear. Solo runners completing 50K or more receive a glow-in-the-dark finisher medal, and those completing 100K receive a glow-in-the-dark belt buckle. All relay team members receive finisher medals.

Special Challenge

A 100-Mile Challenge is offered for the 3-person relay division. The first-place team to break 100 miles total within the 12 hours wins a $500 cash prize. Visit the organization's website for the most recent information.

165 km
6-Hour Solo
165 km
3-Hour Solo
165 km
12-Hour Solo
165 km
3-Person Relay
112 km
5-Person Relay
50 km
50k