Chase the Moon

JUN
27
2027
Overnight trail endurance event in Highlands Ranch offering solo ultras and 3 or 5 person 12 hour relays on marked 10.3 and 5.3 mile loops with two aid stations.
Sun 27 Jun 2027
50k 6-Hour Solo 5-Person Relay 3-Person Relay 3-Hour Solo

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Chase The Moon

Chase The Moon is an overnight trail endurance event in the Highlands Ranch Backcountry Wilderness area near Mountain Vista High School in Colorado. The event offers solo ultramarathon options and team relays that run through the night under the illumination of the full moon.

Distances and formats include:

  • 12 Hour Solo : solo ultrarunner on a full loop.
  • 6 Hour Solo : shorter solo duration.
  • 3 Hour Solo : short duration solo event.
  • 50K : out-and-back distance on the looped course.
  • 3-Person Relay : teams complete the full loop per lap.
  • 5-Person Relay : teams run a shorter 5.3 mile loop per lap.

The primary loop is 10.3 miles, about 98% dirt trail, with approximately 870 feet of elevation gain per lap and minimal technical difficulty. A shorter 5.3 mile loop is used for five person relay scoring. The course is marked with flags, reflective ribbon, tape, and signs. Two aid stations support the course at Outlaw AS and the start area, offering water, Tailwind endurance fuel, soda, fruit, snacks, and basic supplies such as Kleenex and bug repellant.

Race rules require a carried light source such as a headlamp, restrict crew support to the start area, and prohibit pacers. Relay exchanges must occur at the start area. Drop bag and crew areas are provided at the start area. Awards include a custom finisher medal and podium places for solo and team categories. A 100 mile challenge applies to the 3 person relay with a prize if the team exceeds 100 miles. Visit the organization's website for the most recent information.

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

Events nearby

Trail races at Bear Creek Lake Park on Oct 25 2026 featuring 5 km, 15 km, a 5+15 double and a Kids 1 km. Mostly dirt single and double track with steep climbs, marked courses and included postrace items for adult distances.
A 13.1 mile trail race through the Highlands Ranch Backcountry Wilderness in Douglas County with cash prizes and participant race amenities including a shirt, medal, and pancake breakfast.
A backyard ultra at Bear Creek Lake Park where runners repeat a 4.167 mile loop every hour until one remains, up to 11 laps, with a 50 runner field cap.
A self-supported 50K in Golden, Colorado with four summit loops from Parfet Park, minimal course markings, and a single DIY aid station.
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