Find a Race Near Me Search races

Updated Jul 23, 2026

5K Races in Colorado

Browse 138 upcoming running races in Colorado with dates, cities, distances, registration status, and official links.

Search by ZIP or city Browse all states Add or update a race

Search near you

Find 5k races near you

Enter a city or ZIP code to find races close to you.

Upcoming running races

138 races found

Last updated Jul 23, 2026

Showing races 1–100 of 138.

Race planning guide

How to choose a 5k races in Colorado

Compare more than the date and distance. Open the official race page to review the exact start time, course surface, elevation, time limits, packet pickup, parking, accessibility, and refund or transfer policy before registering.

  • Confirm the source: organizer pages control registration status, pricing, schedule changes, and cancellations.
  • Check the course: road, trail, hills, altitude, and weather can make two events at the same distance feel very different.
  • Plan race morning: verify the venue, parking instructions, start corral, and recommended arrival time.
  • Match your training: leave enough time to build safely for the distance and recover before your next goal race.