Austin Solstice Circuit Challenge
Set a Summer PR at the Austin Solstice Circuit Challenge, the fastest summer ultramarathon in Texas, held at scenic Pace Bend Park on Lake Travis. 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 unique event features a perfectly engineered 1.64-mile paved loop with an elevation gain of just 33ft, designed for speed and performance even in July. The course is USATF-certified (TX25015LAB) and a Boston Qualifier.
Race Distances and Start Times:
- 52.7 Mile Solo: Loops: 32, Distance: 52.7 mi, Start: 7:00 PM 07/25
- 50K Run: Loops: 19, Distance: 31.0 mi, Start: 7:00 PM 07/25
- Marathon: Loops: 16, Distance: 26.35 mi, Start: 7:00 PM 07/25
- 25K Run: Loops: 10, Distance: 15.5 mi, Start: 7:00 PM 07/25; 7:00 AM 07/26
- 10K Run: Loops: 4, Distance: 6.2 mi, Start: 7:00 PM 07/25; 7:00 AM 07/26
- 5K Run: Loops: 2, Distance: 3.1 mi, Start: 7:00 PM 07/25; 7:00 AM 07/26
- Carpe Diem 60 (One Hour): Start: 6:00 AM 07/26, 7:00 AM 07/26
Why Choose This Race?
- Fast, PR-Friendly USATF Certified Marathon Course: Ideal conditions for record-setting performances with minimal elevation gain.
- Evening Start Format: Race as the sun sets and July's magnificent Buck Moon rises over the limestone bluffs, ensuring cooler temperatures for longer distances.
- Pacers Allowed: Personal pacers are welcome for Marathon, 50K, and 52.7 Mile Solo events. Pacers must pay a $15 fee, sign a waiver, and wear a designated bib.
Pickup Information:
- Saturday Packet Pickup: 4:30 PM - 6:30 PM.
- Race Day Pickup: Sunday morning 5:30 AM - 6:30 AM.
Carpe Diem 60: The Sunrise Hour
Start your day with purpose in this 60-minute sunrise endurance challenge. Cover as much distance as possible in one hour with early morning focus.
Course Details:
- Surface: 100% smooth, paved asphalt.
- 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 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 racing from sunset to stars beneath the Buck Moon on the fastest summer ultra course in the Texas Hill Country.
Check out our comprehensive training guide designed specifically for the Solstice Circuit Challenge.