Logo

Calarat Challenge Trail Running Festival

Jamestown, United States • 30-31 Aug 2025

The Calarat Challenge Trail Running Festival takes place in Jamestown, Colorado, at the Cal-Wood Education Center, a nonprofit dedicated to outdoor education. Held over Labor Day weekend, the event features multiple trail races including a half marathon, 10K, 5K, Kids 1K, and combination races like 5K + half marathon and 5K + 10K. Runners traverse scenic trails on private properties of Cal-Wood and Balarat Outdoor Education Center.

The festival offers lodging, camping, a pasta dinner, and a post-race party with food, beer, and music. A Kid Adventure Time program is available for children during race morning, providing supervised outdoor activities. Dogs are not permitted, and no refunds are offered. Visit the organization's website for the most recent information.

United States Colorado Jamestown

Race information

Website Registration
26 km
5k + 1/2 Marathon
21 km
1/2 Marathon
15 km
5k + 10k
10 km
10k
5 km
Kids 1k
Visit the organization's website for the most recent information.
Trail runs nearby

Boulder XC Series

Boulder - 9 mi from Jamestown

Boulder XC Series Meet 1 is a family-friendly cross-country event held at Valmont City Park (South) in Boulder, Colorado (5110 Valmont Rd). The meet offers three distances: 1K for younger runners, 3K for those up to 16, and a 5K open race,..

Rocky's Backyard Ultra

Estes Park - 19 mi from Jamestown

Rocky's Backyard Ultra near Estes Park has runners loop 4.167 miles each hour until one remains, with Long's Peak views and 500 feet of climb. Expect variable October mountain weather, aid station, cash and buckle prizes.

Colleen De Reuck XC Classic

Boulder - 9 mi from Jamestown

The Colleen De Reuck XC Classic is a cross country running event held annually at Harlow Platts Community Park in Boulder, Colorado. Honoring renowned distance runner Colleen De Reuck, the race promotes health, fitness, and celebrates local..

Louisville Trail Race

Louisville - 16 mi from Jamestown

Run the Louisville Trail Race on November 15, 2025, amid the Flat Irons with 13.1, 10K or 5K dirt courses on scenic trails. Enjoy post race festivities and bring a reusable cup or purchase one onsite.

Thumbs Up Vertical Challenge

Estes Park - 19 mi from Jamestown

Event overview The Thumbs Up Vertical Challenge takes place in Estes Park, CO on December 6, 2025. The event is an ascent-based out-and-back format on the Thumb Open Space trail. At the trail turnaround, runners collect a poker chip and dep..

USCSA Cross Country Ski Racing Festival

Granby - 29 mi from Jamestown

USCSA Cross Country Ski Racing Festival, hosted by Colorado Mesa University at Snow Mountain Ranch Nordic Center in Granby, Colorado, on January 24–25, 2026, brings collegiate teams together with junior skiers for a two-day Nordic festival...