The Bear Chase

OCT
3-4
2026
The Bear Chase Trail Race is a two-day endurance festival in Colorado's Bear Creek Lake Park. On Saturday, runners can tackle ultra distances from 50K to 100K, while Sunday features shorter races like a half marathon, 10K, and 5K. The courses offer scenic single-track trails with varying elevation.
3-4 Oct 2026
62 miles 50 miles 31 miles 13 miles 6 miles 3 miles

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Event Overview

The Bear Chase Trail Race is a two-day endurance festival held at Bear Creek Lake Park in Lakewood, Colorado. The ultra-distance races (100K, 50 Mile, and 50K) take place on Saturday. The shorter distances (Half Marathon, 10K, and 5K) are held on Sunday.

Course Details

The course is primarily on dirt and single track trails, described as not overly technical and relatively fast for a trail event. Approximately 95% of the race is run on these surfaces. The event features a variety of terrain and panoramic views.

The approximate elevation gain for each distance is:

  • 5K: Information not specified.
  • 10K: 230 ft.
  • Half Marathon: 900 ft.
  • 50K: 1,930 ft.
  • 50 Mile: 3,400 ft.
  • 100K: 4,250 ft.

Additional Information

A portion of the race proceeds benefits the open spaces and trails of Lakewood, as well as partner charities. Visit the organization's website for the most recent information.

62 mi
100k
50 mi
50 Mile
31 mi
50k
13 mi
Half Marathon
6 mi
10k
3 mi