Logo

The Bear Chase

Bear Creek Lake Park, United States • 4-5 Oct 2025

The Bear Chase Race Endurance Festival is a trail running event held at Bear Creek Lake Park in Lakewood, Colorado. It offers multiple distances including 100K, 50 Mile, 50K, Half Marathon, 10K (Baby Bear), and 5K, catering especially to first-time ultramarathoners and trail runners. The course features mostly dirt and single-track trails with a variety of challenging terrain and panoramic views, yet remains relatively fast and not overly technical by trail standards. Elevation gains vary by distance, with the 100K having about 4,250 feet of gain. The event supports local open space preservation and provides a scenic, well-supported race experience. Visit the organization's website for the most recent information.

United States Colorado Bear Creek Lake Park

Race information

Website
100 km
4336 m+
100k
50 mi
3470 m+
50 Mile
50 km
2036 m+
50k
13 mi
887 m+
Half Marathon
10 km
311 m+
10k
5 km
127 m+
Visit the organization's website for the most recent information.
Trail runs nearby

Elevation Run

Conifer - 12 mi from Bear Creek Lake Park

The Elevation Run/Walk is an annual event held in Conifer, Colorado, showcasing the scenic Aspen Park neighborhoods and Meyer Ranch Park at an average elevation of 8,200 feet. The 13th edition, scheduled for July 26, 2025, features a 10K race, a USATF-certified 5K, and a 2-mile fun run, with courses..

Boulder Rez Marathon

Boulder - 26 mi from Bear Creek Lake Park

The Boulder Rez Marathon, held at Boulder Reservoir in Boulder, Colorado, offers a scenic and mostly flat course with only 200 feet of elevation gain. Runners enjoy trails and dirt roads alongside the reservoir, with stunning views of the water and the Rocky Mountains. The event features multiple di..

Holy Cow Trail Stampede

Westminster - 13 mi from Bear Creek Lake Park

The Holy COW Trail Stampede is a trail running event held in Westminster, Colorado, featuring distances including a 5K and a 10-mile race. Participants enjoy a fun, community-focused atmosphere with a western theme, running through scenic trails near the Westminster Promenade Terrace. All runners re..

Dirt Circus - Boulder

Table Mesa - 23 mi from Bear Creek Lake Park

Dirt Circus - Boulder is a free community running event held in Boulder, Colorado, celebrating local trail running culture. Organized by UltraSignup, the event features a social group run with options of a casual 4.5-mile or 10K route through the local trails. Beyond running, the festival offers foo..

Staunton Rocks

Pine Junction Area - 17 mi from Bear Creek Lake Park

The Staunton Rocks! Marathon & Half is a trail running event held at Staunton State Park in Pine, Colorado, featuring a marathon (26.3 miles, 4,500 ft elevation gain) and a half marathon (13.1 miles, 2,200 ft gain). The course is primarily singletrack (90%) with some dirt roads, set at an average el..

Westminster Night Trail

Westminster - 13 mi from Bear Creek Lake Park

...

The Westminster Night Trail is an annual night trail running event held at Standley Lake in Westminster, Colorado. Celebrating its 12th year, it offers a festive atmosphere with music, lights, and vibrant trail running vibes under the stars. The course features 100% packed dirt trails, including sin..