Denver Trail Half Marathon & 10K

Saturday, September 8, 2018 • Greenwood Village, CO • Course Map

The Denver Trail Half Marathon is set to make its annual running in mid September.  Runners will jump onto several different trails and follow a route with a pair of turnarounds in the hills just east of Greenwood Village.

The race unfolds largely along natural-surface dirt trails that start and finish at Cherry Creek State Park’s Hobie Hill, continuing along a series of interconnected trails before turning around and retracing their steps toward the finish line.

Limited to 400 entrants — the race has sold out in past years — the Denver Trail Half Marathon will feature aid stations out on the course, though runners are encouraged to bring along their own water bottles to ensure they’re well hydrated during the race, much of which takes place out in the open sunshine.

The race organizers at Colorado’s Endurance Sports add that trail shoes are recommended (though not required) for this race, because so much of it unfolds along dirt and single-track trails. Runners may sign up for the event on the day of the race (provided that entry spots still remain on race day).

Race Weather & Climate

Located just a few miles from downtown Denver, Littleton typically sees warm weather in September, which has brought record temperatures here as low as 14°F (in 1985) and as high as 100°F (in 1990).

On race day (September 8), the average low is 44ºF and the average high is 79ºF.

Past Results

Course Map

See the race route map for the Denver Trail Half Marathon here.

Starting Time

  • 7:30 AM – half marathon
  • 7:50 AM – 10K


  • $70 – $80 for the half marathon
  • $40 – $50 for the 10K


To reserve your spot in the 2018 running of the Denver Trail Half Marathon or 10K race, register online at here.

Official Race Website


Ever run in the Denver Trail Half Marathon? Share your impressions here, or post your review in the Comments below.

See more races in: September, Colorado

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