AUSTIN SOLSTICE CIRCUIT CHALLENGE

THE FASTEST SUMMER ULTRAMARATHON IN TEXAS

July 12, 2025 | Pace Bend Park, Lake Travis

$1,300 PRIZE POOL

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.



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Set your sights on a personal record and a chance to win part of the $1,300 prize pool at the Austin Solstice Circuit Challenge. This unique event features a perfectly engineered 1.55-mile paved figure-8 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 RELAY & SOLO

Loops: 34
Distance: 52.7 mi
Start: 7:00 PM 07/12
Solo or teams of 2-6 runners

50K

Loops: 20
Distance: 31.0 mi
Start: 7:00 PM 07/12

MARATHON

Loops: 17
Distance: 26.35 mi
Start: 7:00 PM 07/12

25K

Loops: 10
Distance: 15.5 mi
Start: 7:00 PM 07/12

10K

Loops: 4
Distance: 6.2 mi
Start: 7:00 PM 07/12
8:30 AM 07/13

5K

Loops: 2
Distance: 3.1 mi
Start: 7:00 PM 07/12
8:30 AM 07/13

WHY CHOOSE THIS RACE?

FAST, PR-FRIENDLY COURSE

Unlike typical Texas summer ultras with brutal heat and technical trails, our smooth asphalt figure-8 loop with just 33ft elevation gain creates ideal conditions for record-setting performances.

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 17 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.

CASH PRIZES

Compete for a share of the $1,300 prize pool with substantial cash awards for overall winners across all distances.

FREE 1K KIDS' FUN RUN

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: Only 33ft gain per loop gentle, predictable terrain
* LOOP LENGTH: 1.55 miles in a figure-8 configuration
* SCENERY: Limestone bluffs, oak-covered hills, and Lake Travis views
* AID STATION: Access every 1.55 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 running fast through a Texas summer night beneath towering oaks and limestone cliffs, the Solstice Circuit Challenge offers a rare opportunity to push your limits under optimal conditions."

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

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.

REGISTER NOW!

Ready to prepare? Check out our comprehensive training guide [https://fitfoundation.org/solstice-circuit-training] designed specifically for the Solstice Circuit Challenge.