Colorado 13er Half Marathon

JUN
7
2026
Run through scenic Louisville with views of the Flatirons. The Colorado 13er offers a half marathon on a looped course with 10k and 5k options. Participants receive a performance tee, chip timing, and finishers get a medal.
Sun 7 Jun 2026
Half Marathon 10 kilometers 5 kilometers

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Event Details

The Colorado 13er takes place in Louisville, Colorado on June 7, 2026. The event offers multiple distances: a half marathon (13.1 miles), a 10k, and a 5k. The half marathon is open to participants aged 14 and older.

Course and Location

The half marathon course is a loop that runs through Louisville and is designed to offer views of the Flatirons. Approximately nine miles of the course are on flat, crushed gravel terrain.

The race starts and finishes at the Home Depot at 1200 Dillon Road, Louisville, CO.

Event Features

The event includes several amenities and services:

  • 10 water stations.
  • 5 portable restrooms.
  • Free, nearby parking.
  • Chip timing with texted results and live, online results posting.
  • Gender-specific performance blend t-shirts for all registrants.
  • A finisher medal for half marathon participants.
  • Iced towels at the finish line.
  • The event is described as spectator-friendly.

The race organizer, 3W Races, partners with a local charity, Community Food Share, and offers a $5 discount per person for groups of five or more. A free GPS tracking app, RaceJoy, is available for participants. Visit the organization's website for the most recent information.

Half Marathon
13er
10 km
10k
5 km