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Great Springs Trail Race - San Marcos

San Marcos, United States • 11 Oct 2025

The Great Springs Trail Race in San Marcos, Texas, is a vibrant trail running event held at the scenic Purgatory Creek Natural Area. Offering distances of 10K, 13.1 miles (half marathon), 26.2 miles (marathon), and a youth 1-mile race, it features a challenging and fun course with single-track trails, rolling hills, rocky limestone sections, and fast segments. The race is deeply connected to local conservation efforts, supporting the Great Springs Project and the San Marcos Greenbelt Alliance, highlighting the importance of the Edwards Aquifer. Participants enjoy well-marked trails, multiple aid stations, and a lively race atmosphere in the heart of San Marcos, with family-friendly amenities and quality race swag. Visit the organization's website for the most recent information.

United States Texas San Marcos

Race information

Website Registration
26 mi
Great Springs Trail Race - San Marcos 26.2 Mi
13 mi
Great Springs Trail Race - San Marcos 13.1 Mi
10 km
Great Springs Trail Race - San Marcos 10k
Great Springs Trail Race - San Marcos Youth 1- Mile Trail Race (12 & Under)
Visit the organization's website for the most recent information.
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