Three Creeks Half Marathon
Updated
Sunday, April 4, 2027, first start 8:00 AM, in Englewood (4800 S. Dayton St.). Distances: Half marathon. Entry from $65 to $100; the Half marathon goes from $65 to $70 after December 1.
- Date
- Sunday, April 4, 2027
- Start time
- 8:00 AM (earliest wave)
- Location
- 4800 S. Dayton St., Englewood, CO 80111
- Area
- Denver Suburbs, Denver & Boulder
- Distances
- Half marathon
- Course
- Road or path
- Price
- $65 to $100 plus the platform's processing fee
- Next price increase
- Tuesday, December 1, 2026: Half marathon $65 → $70
- Registration
- Open. Opened August 29, online signup closes Sunday, April 4, 2027
How to register
Registration is on RunSignup. Pick your distance, add any extras, and you'll get a confirmation email with your bib details. Sign up by December 1 to pay $65 instead of $70.
Register on RunSignup →Race website
Course and race notes
FULL WEBSITE AT: https://www.racingunderground.com/three-creeks. Welcome to Denver's Best Spring Half Marathon! Sunday April 4, 2026 at Cherry Creek State Park. Racing Underground brings you an amazing half marathon this spring!
From the race's own listing. Check the race website for the course map and parking.
Source: RunSignup public race API, refreshed 2026-10-17. Details can change; the registration page is the final word.