Chase the Moon

Event information

Chase the Moon is an overnight endurance run on Saturday, June 27, 2026, in the Highlands Ranch Backcountry trail system. The event is based at Mountain Vista High School in Highlands Ranch, Colorado. Race formats include solo timed events and team relays held on a repeated loop through the backcountry trails under the full moon.

Distances and formats

• 12-Hour Solo (repeated loop laps)
• 6-Hour Solo
• 3-Hour Solo
• 50K
• 3-Person Team Relay (12-hour)
• 5-Person Team Relay (12-hour)

Course and logistics

The primary loop is 10.3 miles, run mostly on dirt trails with approximately 870 feet of elevation gain per lap and minimal technical difficulty. The course is marked with flags, reflective tape, signs, and spray chalk. Solo runners and 3-person relays run the full 10.3-mile loop; 5-person relays alternate between two shorter loops (about 7.1 miles and 5.2 miles).

Two aid stations support the course: Outlaw (around Mile 4.3) and Start/Finish (around Mile 10.3). Aid offerings include water, Tailwind endurance fuel, soda; sweet and salty snacks, watermelon, oranges, bananas, bean rollups, and PB&J. Port-o-potties, Kleenex, bug repellant, and Vaseline are available.

Rules and services: headlamps or handheld lights are required on course; crew support is allowed only at the Start/Finish area; pacers are not allowed; all relay exchanges must occur at the Start/Finish. Solo runners who complete 50K or more receive a glow-in-the-dark finisher medal; 100K finishers receive a glow-in-the-dark belt buckle. A 100-mile challenge offers a cash prize for a qualifying 3-person relay performance. Visit the organization's website for the most recent information.