🏃 2021 Races, Runs, & Rides in Douglas County

Castle Rock, Highlands Ranch, Lone Tree, Parker, and Surrounding Areas

By Kyrie Collins, Highlands Ranch-Parker-Castle Rock-Lone Tree Publisher September 12, 2021

Know about a race in Douglas County not listed here? Email

Backcountry Wilderness Half Marathon
Saturday, November 6 at 9:00 AM
Rocky Heights Middle School, Lone Tree

  • Registration starts at $60 (price increase on April 20)
  • Registration includes a long-sleeve shirt and post-race party with free pancakes and free beer (21+)

17th Annual Turkey Rock Trot
Thursday, November 25 at 9:00 AM
Douglas County Events Center, Castle Rock

  • Adult Registration: $40 through October 1 | $45 November 1-22 | $50 on Race Day
  • Kid Registration: $20 through October 1 | $25 November 1-22 | $30 on Race Day
  • Free 1K Kids Dash at 8:30 AM
  • Visit the Health and Wellness Expo before and after the race
  • Proceeds benefit the Help & Hope Center

Turkey Day 5K
Thursday, November 25
Parker Recreation Center, Parker

  • More details coming soon

Highlands Ranch 5K/10K
Sunday, February 27, 2022
Highlands Heritage Regional Park, Highlands Ranch

  • 5K Run/Walk: $40 (price goes up after October 31, 2021)
  • 10K Run: $50 (price goes up after October 31, 2021)
  • Features a food drive for Blessings in a Backpack

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