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Saturday - June 27, 2026

Sign Up Now

Chase the Moon
Endurance Run

12 Hour Endurance Run
Solo: 12-Hour, 6-Hour, 3-Hour, 50K
Team Relay: 3-Person, 5-Person

Mountain Vista High School
Highlands Ranch, CO

Chase the Moon is a 12-hour team relay and solo ultramarathon, run overnight under the light of the full moon in the Highlands Ranch Backcountry trail system (we promise some of the best views of the metro and front range). Run as a solo ultrarunner, or get your fellow moon-chasing friends for a 3-person or 5-person relay team.

Chase the Moon begins at 7 p.m. on Saturday during a beautiful Rocky Mountain sunset, continues through the night beneath the illumination of the full moon, and finishes at 7 a.m. on Sunday as the sun rises in the east to paint the foothills with alpenglow. Don’t miss this unique and incredible running experience.

*Distances may vary slightly each year due to permitting.

Start Time

7:00pm - All Races Start
8:28pm - Sunset
8:59pm - End Civil Twilight
9:34pm - Moonrise
5:43am - Sunrise
5:10am - Begin Civil Twilight
7:00am - Finish Line Closes
7:21am - Moonset

Bib Pickup

Mountain Vista High School
10585 Mountain Vista Ridge Highlands Ranch, CO
Saturday, June 27
4:30 pm - 7:00 pm

Fleet Feet - Littleton
8116 W Bowles Ave, Littleton, CO
Friday, June 26
4:30 pm - 6:30 pm

Volunteer

We need help to make Chase the Moon possible. Volunteer perks include Aravaipa race credits and race swag!
Volunteer Now

100 Mile Challenge

Are you up for the Chase the Moon 100-Mile Challenge? A special challenge just for our 3-person relay division; if the 1st Place, 3-person team breaks 100 miles total for the 12-hour race, they will receive a $500 cash prize!

Live Tracking

Follow the 2026 Chase the Moon with live split points throughout race weekend.
Aravaipa Live
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Register Now
Registration closes: Mon, June 22 @ 11:59PM MT

Race Registration

Until 1/14 Until 4/14 Until 6/22 Race Day
12 Hour Solo $145 $155 $165 $175
3-Person Relay $275 ($92 Per Person) $305 ($102 Per Person) $335 ($112 Per Person)
$365 ($122 Per Person)
5-Person Relay $405 ($81 Per Person) $455 ($91 Per Person) $505 ($101 Per Person)
$555 ($111 Per Person)
50K $135 $150 $165 $175
6 Hour Solo $120 $130 $140 $150
3 Hour Solo $95 $105 $115 $125

NOTE: Prices do not includes taxes or Ultrasignup fees. 
Withdrawal Policy
*Race swag only guaranteed with entry if registered on or before June 5, 2026.

Course Information

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Key Stats
Date | Saturday, June 27, 2026

Start Time | 7:00 pm

Time Limit | 12 Hours

Distance | 10.3 Miles

Total Elevation Gain | 870 feet

Max Elevation | 6,132 feet

Women's Course Record | 58.5 Miles - Emily Kunkel (2021)

Men's Course Record | 65.3 Miles - Andy Palmer (2017)

Course Map
CalTopo Course  Map

12 Hour Solo Event Details

Additional Race Info

Post Race

Results & Photos

Proud Sponsors

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