Chase the Moon

JUN
27
2027
Overnight trail endurance event in Highlands Ranch with solo ultramarathon options and 3 or 5 person 12 hour relays on 10.3 and 5.3 mile loops under the full moon.
Sun 27 Jun 2027
50k 3 Hour Solo 6 Hour Solo 12 Hour Solo 3-Person Relay

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Chase the Moon

Chase the Moon is an overnight trail endurance event held in the Highlands Ranch Backcountry near Mountain Vista High School in Colorado. The race offers multiple timed and distance options, including solo ultramarathon efforts and team relays over a 12-hour event duration. The course is a looped trail system with well-marked routes and two staffed aid stations.

The main loop measures 10.3 miles and is 98% dirt trail with approximately 870 feet of elevation gain per lap and mostly open, exposed views. A shorter 5.3 mile loop is used for the five-person relay and has about 420 feet of gain per lap. Nighttime running under a full moon is a core element of the event; runners are required to carry a light source such as a headlamp.

Support details include two aid stations (Outlaw and Start/Finish) stocked with hydration, Tailwind endurance fuel, soda, and a mix of sweet and salty foods. Drop bags and a designated crew area are allowed at the Start/Finish only. Pacers are not permitted. Medical staff and a medical tent are located at the Start/Finish and basic first aid is available at Outlaw. The race continues in most weather, though hazardous conditions such as severe lightning can suspend activity for safety. Visit the organization's website for the most recent information.

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