Ralston Creek Half Marathon & 5k
Updated
Sunday, February 14, 2027, first start 9:00 AM, in Arvada (6542 Fig Street). Distances: 5K, Half marathon. Entry from $25 to $140; the Half marathon goes from $70 to $75 after November 1.
- Date
- Sunday, February 14, 2027
- Start time
- 9:00 AM (earliest wave)
- Location
- 6542 Fig Street, Arvada, CO 80004
- Area
- Denver Suburbs, Denver & Boulder
- Distances
- 5KHalf marathon
- Course
- Road or path
- Price
- $25 to $140 plus the platform's processing fee
- Next price increase
- Sunday, November 1, 2026: Half marathon $70 → $75
- Registration
- Open. Opened August 29, online signup closes Sunday, February 14, 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 November 1 to pay $70 instead of $75.
Register on RunSignup →Race website
Course and race notes
The Ralston Creek races feature a fun winter half-marathon and 5K run conveniently located on the west side of the Denver Metro Area in Arvada, Colorado.
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.