Entry fees for the Austin Solstice Circuit range from $29.99 to $230.00, depending on distance and format. The race takes place on July 25, 2026, in Spicewood, Texas, at 2805 Pace Bend Road North, with a 7:00 AM start. Runners can choose from multiple distances: 1 mile, 5K, 5 miles, 6.2 miles, a marathon, a 50K, or the full 52.7-mile circuit. The event also offers 12-hour solo and relay options. With nine distance options spanning from 1 mile to the ultramarathon distance, the Austin Solstice Circuit accommodates various fitness levels and race goals, making it accessible for runners training for everything from their first race to long-distance endurance events.
From the Race Organizer
Austin Solstice Circuit Challenge The Fastest Summer Ultramarathon in Texas July 25 & 26, 2026 | Pace Bend Park, Lake Travis Set a Summer PR! 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; 7:00AM 07/26 Half-Marathon Loops: 10 Distance: 13.1 mi Start: 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 2-Person Teams The Ultimate Night-Shift Team Challenge. 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) Unlike typical Texas summer ultras with brutal heat and technical trails, our smooth asphalt loop with minimal elevation gain creates ideal conditions for record-setting performances. This is a USATF-certified course: Certification code: TX25015LAB. Evening Start Format Race as the sun sets and July's magnificent Buck Moon rises over the limestone bluffs. Our strategic evening start times for longer distances mean cooler temperatures when you need it most. Pacers Allowed While we won't be providing official pacing groups for the Austin Solstice Circuit Challenge due to our size, we enthusiastically welcome personal pacers for both the Marathon, 50K and 52.7 Mile Solo events. Personal pacers can join Marathon and 50K participants after 8 loops and 52.7 Mile runners after 16 loops (approximately halfway points). Each pacer must pay a $15 fee that covers park entry, administrative costs, and an official pacer bib. Pacers need to sign a waiver and wear their designated "PACER" bib while on course. Runners are responsible for arranging their own pacers, but the loop format makes it particularly convenient for your support crew to join when you need them most. We find this flexibility is especially appreciated by first-time marathoners and ultra runners who benefit from personalized support during the challenging later miles as day turns to evening. Pickup Information: Saturday Packet Pickup: Available from 4:30 PM to 6:30 PM. Sunday Packet Pickup: For those unable to attend on Saturday or who prefer to pick up on race day, same-day packet pickup will be available Sunday morning from 5:30 AM to 6:30 AM. 12-Hour Overnight Relay (2-Person Teams) Smash out alternating single loops, swap out every hour, or split the night into two massive blocks; your team controls the strategy. The relay kicks off at 7:00 PM Saturday and ends exactly at 7:00 AM Sunday. All transitions take place right at the main canopy timing mat next to the team layout area. You will pass off your team's timing chip to your partner to trigger the next leg. Team Registration: The first member to sign up will create the team name and pay the full registration fee. Teammate Invite: Once the team is created, the second member can register and join the roster. (Note: You can choose to split the cost evenly through RunSignup’s automatic split-pricing feature at checkout!) What’s Included: Every single relay participant receives a finisher medal, custom race swag, and full access to the overnight aid hub support. Maximum Roster: Strictly limited to 2 runners per team.Parking Limitation: To ensure we don't overflow our park lot near Kate's and Johnson Cove, relay teams are strictly limited to one (1) vehicle per team. Please plan to carpool to the venue! 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 "Whether you're chasing a PR, a qualifying time, or simply want to experience the joy of run
Hotels Near This Race
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Race Travel Insurance
Don't forget travel insurance for July 25.
You've trained for months and booked a trip to Spicewood, TX.
A pre-race injury, a delayed flight, or a family emergency can derail the whole thing.
Travel insurance can help cover your race entry fee, hotel, and flights if you can't make it,
and may cover medical costs if something goes wrong on the course. Plans typically only run
5-7% of your total trip cost — and running events are covered under standard plans with no
additional coverage needed.
Trip cancellation up to 100% of prepaid costs
Running events covered under standard plans — no add-ons needed
Trip interruption up to 150% of non-refundable costs
When is Austin Solstice Circuit 52 Miler • 50K • Marathon • 25K • Half-Marathon • 10K • 5K • 12-Hour Solo & Relay 2026 — Spicewood, TX?
Austin Solstice Circuit 52 Miler • 50K • Marathon • 25K • Half-Marathon • 10K • 5K • 12-Hour Solo & Relay 2026 — Spicewood, TX takes place on July 25, 2026. The race is held in Spicewood, Texas.
Where is Austin Solstice Circuit 52 Miler • 50K • Marathon • 25K • Half-Marathon • 10K • 5K • 12-Hour Solo & Relay 2026 — Spicewood, TX held?
Austin Solstice Circuit 52 Miler • 50K • Marathon • 25K • Half-Marathon • 10K • 5K • 12-Hour Solo & Relay 2026 — Spicewood, TX is held at 2805 Pace Bend Road North in Spicewood, Texas.
Where can I find hotels near Austin Solstice Circuit 52 Miler • 50K • Marathon • 25K • Half-Marathon • 10K • 5K • 12-Hour Solo & Relay 2026 — Spicewood, TX?
RaceHotelFinder shows hotels sorted by distance from the race venue in Spicewood. Use the map or list view on this page to compare options and book race weekend accommodation.
