The Bear Chase

OCT
3-4
2026
A trail race weekend in Lakewood CO offering distances from 5K to 100K on mostly singletrack dirt trails with aid stations, drop bags, and looped course formats.
3-4 Oct 2026
100 kilometers 50 miles 50 kilometers 13 miles 10 kilometers 5 kilometers

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The Bear Chase

The Bear Chase is a weekend endurance festival held at Bear Creek Lake Park in Lakewood, Colorado on October 3 and 4, 2026. The event offers multiple trail race distances on looped courses that use primarily singletrack and dirt trails.

Distances include:

  • 100K (five 12.5 mile orange laps)
  • 50 Mile (four 12.5 mile orange laps)
  • 50K (one blue loop plus two orange laps)
  • Half Marathon (one orange loop)
  • Baby Bear 10K (one blue loop)
  • 5K (one 3.1 mile loop)

Course and support details: Most courses are 99% soft surface and singletrack with short asphalt sections on some distances. Aid stations are positioned around the loops and are stocked with water, Tailwind endurance fuel, soda, sweet and salty snacks, fruit, and basic supplies; porta potties are available at aid locations. Drop bags and crew assistance are managed from the Start/Finish area; crewing on the course is prohibited. Pacers are permitted for the longest events under event rules, while pacers are not allowed for shorter distances.

Logistics and rules: Runners receive complementary park entry prior to the race; crew, spectators, and pacers must follow park pass requirements after the race begins. Runners are required to carry their own hydration system as the event is cup free. Medical support and first aid are available at the Start/Finish and at aid stations. Awards include finisher prizes for each distance and podium awards for overall places. Visit the organization's website for the most recent information.

100 km
100k
50 mi
50 Mile
50 km
50k
13 mi
Half Marathon
10 km
10k
5 km
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