Castle Rock Trail Festival

Castle Rock, United States • 4 Oct 2025

The Castle Rock Trail Festival, also known as the liveBIG Run, is an exciting trail running event held in Castle Rock, Colorado, featuring courses through the scenic Philip S. Miller Park and Ridgeline Open Space. It offers a variety of distances to suit all levels, including a 5K, 10K, half marathon, and a challenging 50K ultramarathon, as well as a family-friendly liveBIG Family Adventure Run with an obstacle course for children ages 5 to 12. Participants enjoy professional chip timing, finisher medals, event T-shirts, aid stations with water and electrolytes, and post-race refreshments. The festival celebrates outdoor fitness and community spirit amidst beautiful natural surroundings. Visit the organization's website for the most recent information.

Race information

50 km
Ridgeline 50k
13 mi
Ridgeline Trail Half Marathon
10 km
Ridgeline 10k
5 km
Philip S. Miller 5k
Livebig Family Adventure Run
Visit the organization's website for the most recent information.
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