Great Springs Trail Race - San Marcos

Event details

The Great Springs Trail Race - San Marcos is scheduled for October 11, 2025 at Purgatory Creek Natural Area, 2116 Hunter Rd, San Marcos, TX 78666. The event offers multiple distances:

• 10K
• 13.1 miles
• 26.2 miles
• Youth 1 mile (open to ages 12 and under; capacity for the event is limited and the usual Youth One Mile may not be held)

Parking near the lower trailhead is limited. The Hays County Elections Office parking lot and Hernandez Elementary School provide additional parking options. There is no event camping.

Course and race logistics

The main route is a well-marked 13.1 mile loop with single track trails, wider faster sections, rolling hills, and rocky limestone. The 10K turns around at the first aid station (Dreamers) and follows markings back to the finish. The course finishes on a slight downhill.

There are three aid stations including start/finish; the Flow Aid Station is at the Upper Purgatory Trailhead and is crew-accessible. All aid stations provide water and Tailwind at minimum; the start/finish and the mid-course station also offer snacks, fruit, and a variety of drinks. Drop bags are allowed at the Flow station with spectator access at mile 6.9. All races are chip timed with ankle-attached chips picked up at the venue; pacers are not allowed. Overall awards are given to the Top 3 Overall plus Top 1 Masters (50 and older). Visit the organization's website for the most recent information.