Plan your 2026 race calendar with this list of organized races throughout Douglas County and the surrounding areas! For beginning runners, you’ll find plenty of fun options to match your favorite theme or time of year, and more serious runners will find longer race distances to take your running to the next level. If you’re new to running, be sure to check out these tips for starting a fitness routine so you can build up safely and avoid injury.
If you know of a race not on the list, submit it here!
Click here to jump to the list of local run clubs where you can meet other runners and train together for your next race.
Castle Rock
ShamROCK Stampede & Indoor Health Expo
Date: March 14
Distance: 5K/10K/1K (kids)/Family Fun Run
Location: Douglas County Event Center
Included: Music, Beer, Bagels, T-shirt, Indoor Expo
Organizer: Run to Change Lives
First Fridays 5K
Date: Jun 6 – Those Crazy Nights, July 4 – Ryan Chrys & the Rough Cuts, Aug. 1 – Disco Revue
Distance: 5K
Location: Festival Park
Included: Live Music, Kids’ Activities, Food Trucks, Cocktails
Organizer: Town of Castle Rock
July 4th ROCK-IT RUN
Date: July 4
Distance: 5K/Half (with relay option)/1K
Location: Douglas County Fairgrounds
Included: Music, T-shirt, Beer, Brat, Expo
Organizer: Run to Change Lives
Summer Splash Prairie Dog Half, 10k, & 5k
Date: July 18
Distance: 5K/10K/Half
Location: East Plum Creek Trail
Included: Race Day Shirt, Finisher’s Pint Glass, Photos, Finisher Medal (Half Marathon only)
Organizer: 3W Races
Rock Hawk Trail Races
Date: Aug. 29
Distance: 5K/10K/25K/50K
Location: Phillip S. Miller Park
Included: Finisher Award, Photos
Organizer: Aravaipa Running
Castle Rock Trail Festival / liveBIG Run
Date: Oct. 3
Distance: 5K/10K/Half/50K
Location: Philip S. Miller Park and Ridgeline Open Space
Included: T-shirt, Finisher’s Medal, Beer, Photos, Obstacle Course
Organizer: Town of Castle Rock
The Plum Creek Church 21st Annual Turkey ROCK Trot Presented by CORE
Date: Nov. 27
Distance: 5K Run/Walk/1K (kids)
Location: Douglas County Event Center
Included: Pancakes, Beer, T-shirt, Photos, Indoor Expo
Organizer: Run to Change Lives
Highlands Ranch
SPECIAL: Purchase multiple races organized by the Highlands Ranch Community Association and get a bundle discount!
Highlands Ranch 5K
Date: Feb. 22
Distance: 5K
Location: Highlands Heritage Regional Park
Included: Included: Hot Apple Cider, Hot Cocoa, Finisher Mug, Performance Tee
Organizer: 3W Races
St. Patrick’s Day 5K
Date: March 14
Distance: 5K Run/Walk
Location: Highlands Ranch Town Center
Included: Included: Beer, Pancakes, T-shirt, Pint Glass, Entertainment
Organizer: Highlands Ranch Community Association Race Series
Mother’s Day 5K
Date: May 9
Distance: 5K Run/Walk
Location: Cresthill Middle School
Included: Pancakes, Custom Giveaway, T-shirt
Organizer: Highlands Ranch Community Association Race Series
Happy Hour Half K
Date: June 19
Distance: 1640 feet
Location: Civic Green Park
Included: Music, Beer, Finisher Medal, T-shirt
Organizer: Highlands Ranch Community Association Race Series
Independence Day 5K
Date: July 4
Distance: 5K Run/Walk
Location: Highlands Ranch Town Center
Included: Beer, Pancakes, T-shirt, Pint Glass
Organizer: Highlands Ranch Community Association Race Series
Unicorn 5K
Date: Aug. 1
Distance: 5K
Location: Highlands Heritage Regional Park
Included: Event Shirt, Cotton Candy, Photos, Balloon Animals, Face Painting
Organizer: 3W Races
Oktoberfest 5K
Date: Sept. 26
Distance: 5K Run/Walk
Location: Highlands Ranch Town Center
Included: Beer, Pancakes, T-shirt, Custom Giveaway
Organizer: Highlands Ranch Community Association Race Series
Wildcat Mountain Trail Races
Date: Oct. 3
Distance: 10 mile/10K
Location: HRCA Backcountry Wilderness Area
Included: Beer, Pancakes, T-shirt, Finisher Medal
Organizer: Highlands Ranch Community Association Race Series
Backcountry Wilderness Half Marathon
Date: Nov. 7
Distance: Half
Location: HRCA Backcountry Wilderness Area
Included: Beer, Pancakes, Long Sleeve Shirt, Finisher Medal
Organizer: Highlands Ranch Community Association Race Series
Lone Tree
Bluffs 8K Trail Run
Date: Aug. 30
Distance: 8K
Location: Bluffs Regional Park
Included: Coming Soon
Organizer: South Suburban Race Series
Parker
SPECIAL: Purchase multiple races in the Parker Recreation Run Series and get a bundle discount until Feb. 14!
Love’em or Leave’em Valentine’s Day 5K/10K
Date: Feb. 14
Distance: 5K/10K/Kids Dash
Location: Salisbury Equestrian Park
Included: Beer, Pancakes, Long Sleeve Shirt
Organizer: Parker Recreation Run Series
Miles Over the Meadow Mother’s Day 5K and Family Fun Trek
Date: May 9
Distance: 5K/Family Fun Trek
Location: Tallman Meadow Park
Included: Beer, Breakfast, Commemorative Item
Organizer: Parker Recreation Run Series
Dash Across the Dam Father’s Day 5K
Date: June 20
Distance: 5K
Location: Rueter-Hess Reservoir
Included: Pancakes, Beer, Commemorative Item
Organizer: Parker Recreation Run Series
Labor Day Half Marathon
Date: Sept. 7
Distance: 5K/10K/Half
Location: Salisbury Equestrian Park
Included: Race shirt, Finisher Medal, Food, Photos
Organizer: Colorado Runner Events
So Long to Summer 5K/10K
Date: Sept. 26
Distance: 5K/10K/Kids Dash
Location: Salisbury Park
Included: Pancakes, Beer, T-shirt
Organizer: Parker Recreation Run Series
Turkey Day 5K FUN Run/Walk
Date: Nov. 26
Distance: 5K
Location: Parker Recreation Center
Included: Beverage, Commemorative Item
Organizer: Parker Recreation Run Series
Surrounding Areas
Super Sunday 5K
Date: Feb. 8
Distance: 5K
Location: Reynolds Landing
Included: Custom ceramic camper mug included with registration for the first 250 registrants
Organizer: South Suburban Race Series
Rockin’ on the River 5K
Date: April 11
Distance: 5K
Location: Hudson Gardens and Event Center
Included: Coming Soon
Organizer: South Suburban Race Series
High Line Canal 5K / 10K
Date: May 2
Distance: 5K/10K
Location: deKoevend Park
Included: Pancakes
Organizer: South Suburban Race Series
Greenland Trail Races
Date: May 2
Distance: 4mile/8mile/25K/50K
Location: Greenland Open Space
Included: Race shirt, Finisher Medal, Pizza, Photos, 50K finishers receive a belt buckle
Organizer: Colorado Runner Events
Pancake Stampede 5K
Date: Aug. 9
Distance: 5K
Location: Hudson Gardens and Event Center
Included: Pancakes
Organizer: South Suburban Race Series
Hoofin’ It Through the Hollows 5K
Date: October TBD
Distance: 5K
Location: deKoevend Park
Included: Coming Soon
Organizer: South Suburban Race Series
Local Run Clubs
Running is always better when you don’t do it alone! Check out these local run clubs to keep you motivated.
Castle Pines Running |
Castle Rock Run Club |
Highlands Ranch Running Club |
Parker Run Club |
RNK Running – Castle Rock and Parker |
Runners Roost Lone Tree |
Sterling Ranch Running Club |
Every effort has been made to ensure the accuracy of the information provided, but be sure to check the event’s website for changes or cancellations.
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