Austin Solstice Circuit

Austin Solstice Circuit Challenge: The Fastest Summer Ultramarathon in Texas

Set your sights on a personal record and a chance to win part of the $1500 prize pool at the Austin Solstice Circuit Challenge. This unique event features a perfectly engineered 1.55-mile paved figure-8 loop at scenic Pace Bend Park on Lake Travis, designed for speed and performance even in July.

Choose from multiple distances (5K, 10K, 25K, Marathon, 50K, or 52.7-mile relay and solo) and experience the advantage of our evening start format for longer distances. As the sun sets and July's magnificent Buck Moon rises, you'll race on asphalt with minimal elevation change - ideal conditions for record-setting performances.

With substantial cash awards for overall winners across all distances, this is your chance to test yourself on potentially the fastest summer ultra course in Texas.

Unlike typical summer ultras that battle brutal daytime heat on technical trails, our course combines:

• A fast, traffic-free paved course
• Strategic evening start times
• Regular access to cooling aid stations
• Gentle, predictable terrain
• Perfect form-holding conditions lap after lap

Whether you're chasing a PR, a qualifying time, or simply want to experience the joy of running fast through a Texas summer night, the Solstice Circuit Challenge offers a rare opportunity to push your limits under optimal conditions.

Join us for an unforgettable sunset-to-stars adventure beneath the Buck Moon on the fastest summer ultra course in the Lone Star State.