Austin Solstice Circuit 52 Miler • 50K • Marathon • 25K • 10K • 5K • 12-Hour Solo & Relay

Austin Solstice Circuit Challenge

The Fastest Summer Ultramarathon in Texas

July 25 & 26, 2026 | Pace Bend Park, Lake Travis

Scenic Hill Country Course

Experience the breathtaking beauty of the Texas Hill Country as you run on smooth paved roads winding through majestic oak trees. With Lake Travis as your backdrop, this picturesque route combines natural beauty with the perfect running surface for speed and comfort.

Set your sights on a personal record at the Austin Solstice Circuit Challenge. This unique event features a perfectly engineered 1.64-mile paved loop with an elevation gain of just 33ft at scenic Pace Bend Park on Lake Travis, designed for speed and performance even in July.

Race Distances

52.7 Mile Race

• Loops: 32
• Distance: 52.7 mi
• Start: 7:00 PM 07/25

50K

• Loops: 19
• Distance: 31.0 mi
• Start: 7:00 PM 07/25

Marathon (USATF Certification code: TX25015LAB)

• Loops: 16
• Distance: 26.35 mi
• Start: 7:00 PM 07/25

25K

• Loops: 10
• Distance: 15.5 mi
• Start: 7:00 PM 07/25: 7:00 AM 07/26

10K

• Loops: 4
• Distance: 6.2 mi
• Start: 7:00 PM 07/25: 7:00 AM 07/26

5K

• Loops: 2
• Distance: 3.1 mi
• Start: 7:00 PM 07/25: 7:00 AM 07/26

12-Hour Relay

• Teams: 2-Person Teams - The Ultimate Night-Shift Team Challenge.
• Strategy: Grab your teammate and conquer the dark together.
• Start: 7:00 PM 07/25

Why Choose This Race?

• Fast, PR-Friendly: USATF Certified Marathon Course (Boston Qualifier)
• Evening Start Format: Cooler temperatures for long distances.
• Pacers Allowed: Personal pacers welcome for major distances.

Course Details

The distinctive figure-8 course winds through the breathtaking Hill Country landscape of Pace Bend Park, featuring limestone bluffs, majestic oak trees, and views of Lake Travis. The smooth asphalt surface throughout makes it perfect for both day and night running, with the main loop connecting to a smaller upper loop.

• Surface: 100% smooth, paved asphalt – ideal for consistent pacing
• Elevation: Minimal gain per loop – gentle, predictable terrain
• Loop Length: 1.64 miles in a figure-8 configuration
• Scenery: Limestone bluffs, oak-covered hills, and Lake Travis views
• Aid Station: Access every 1.64 miles at the start/finish hub
• Marking: Fully marked with reflective markers for nighttime visibility

Amenities

• Aid Station: Fully stocked station at the start/finish hub
• Restrooms: Convenient toilet vault facilities
• Camping: First-come, first-served sites surrounding the course
• Parking: Multiple areas for easy access
• Finisher Awards: Medals and custom challenge coins for all finishers

Join Us for an Unforgettable Experience

Race from sunset to stars beneath the Buck Moon on the fastest summer ultra course in the Texas Hill Country.

Ready to prepare? Check out our comprehensive training guide designed specifically for the Solstice Circuit Challenge.

For more information, visit the official race page: Austin Solstice Circuit Challenge.