3 events in Travis County, Texas

From big races to Saturday morning group runs—find marathon events and connect with the local endurance sports community.

• Austin Solstice Circuit Marathon, 52M, 50K, 25K, 10K, 5, 1-Hr [fitfoundation.org] [Register at runsignup.com]
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  Sat, Jul 25, 2026 at 7:00 AM

  Description

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  Austin Solstice Circuit Challenge

  The Fastest Summer Ultramarathon in Texas

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

  Set a PR!

  Scenic Hill Country Course

  Experience the breathtaking beauty of...

  Austin Solstice Circuit Challenge

  The Fastest Summer Ultramarathon in Texas

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

  Set a 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.

  Race Image 1 Race Image 2

  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

  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

  Carpe Diem 60

  One Hour. One Sunrise.

  Beat the heat.

  Seize the morning.

  Earn your day.

  Start: 6:00 AM 07/26

  7:00 AM 07/26

  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.

  Race Day 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.

  Carpe Diem 60

  One Hour. One Sunrise. Start your day with purpose.

  Carpe Diem 60 is a 60-minute sunrise endurance challenge on this out-and-back course. At 6:00 AM, you’ll have one hour to cover as much distance as possible with early morning focus. Most Distance Covered Wins

  Beat the heat. Seize the morning. Earn your day.

  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 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

  Medals and custom challenge coins for all finishers

  Commemorate your achievement with a premium custom-designed medal featuring Lake Travis. These coins are part of the Race Austin Series: Collector's Challenge, which allows you to exchange three same-tier coins from different Fit Foundation races for a complimentary race entry of the same tier.

  Race Austin Coin Challenge Race Austin Coin Challenge Race Austin Coin Challenge

  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 designed specifically for the Solstice Circuit Challenge.

  3.1 Miles 6.2 Miles 10k 15.5 Miles 25k 26.2 Miles 31 Miles 50k 52.7 Miles Marathon Run Trail

  5700 Pace Bend Rd, Travis County, Texas, 78669, United States
  OpenStreetMap Google Maps
• Colorado River Run: 100-Mile & 50-Mile Ultra, 50K, Marathon, Half-Marathon, 10K and 5K [fitfoundation.org] [Register at runsignup.com]
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  Fri, Nov 27, 2026 at 9:00 AM

  Description

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  COLORADO RIVER RUN

  Run to the River

  "Out here on these trails, not all who wander are lost, some are simply finding their strength."

  100 MILES

  50 MILES, 10 MILES & 5 MILES

  50K & MARATHON

  HALF...

  COLORADO RIVER RUN

  Run to the River

  "Out here on these trails, not all who wander are lost, some are simply finding their strength."

  100 MILES

  50 MILES, 10 MILES & 5 MILES

  50K & MARATHON

  HALF MARATHON

  10K & 5K

  An invigorating trail adventure at Turkey Bend Park

  Connect with Nature, Challenge Your Endurance

  Set along the scenic banks and trails surrounding the majestic Colorado River at Turkey Bend Park, this event offers a unique opportunity to connect with nature while testing your limits. Run through diverse landscapes, including riverbanks, rugged trails, and serene natural habitats as you embrace the spirit of outdoor adventure.

  The Colorado River Run promises to be a memorable experience for runners and nature enthusiasts alike. The course layout is designed to highlight the river's most picturesque spots while providing a challenging terrain for runners of all levels, from competitive athletes seeking to set personal records to recreational runners looking for a unique trail experience.

  Register by November 7, 2026 to guarantee your race shirt!

  Reserve an 8-person camping spot here

  Race Distances

  100 Mile Ultramarathon

  Start Time: 8:00 AM

  Cut-off: 39 hours

  The ultimate river trail adventure for endurance athletes

  50 Mile Ultramarathon, 10 Miler, 5 Miler

  Start Time: 8:00 AM

  Cut-off: 36 hours

  Challenge yourself with breathtaking river views

  50K & Marathon (26.2 miles)

  Start Time: 8:30 AM

  Cut-off: 12 hours

  Classic distance with unforgettable scenery

  Half Marathon (13.1 miles)

  Start Time: 8:30 AM

  Cut-off: 9 hours

  Perfect distance to enjoy the river trails

  10K (6.2 miles) | 5K Run/Walk (3.1 miles)

  Start Time: 8:30 AM

  Cut-off: 9 hours

  Family-friendly option - children can accompany registered parents for free!

  Course Description

  Scenic River Trails

  The course is designed to highlight the Colorado River's most picturesque spots while providing a challenging terrain for runners. You'll experience diverse landscapes, including riverbanks, rugged trails, and serene natural habitats.

  Fully Supported Adventure

  Fully stocked aid stations along the course, providing hydration, nutrition, and medical assistance to ensure your safety and well-being. Our eco-friendly practices, such as waste reduction and the use of sustainable materials, minimize the event's environmental footprint.

  What You'll Experience

  • Terrain: Mix of single-track trails, dirt paths, and occasional technical sections

  • Scenery: Stunning river views, natural habitats, and diverse ecosystems

  • Elevation: Moderate with some challenging climbs and descents

  • Support: Well-stocked aid stations with friendly volunteers

  • Community: Welcoming atmosphere for runners of all abilities

  Ready for 100 Miles?

  Access your complete 100-mile training plan to prepare for this epic adventure!

  ACCESS TRAINING PLAN

  What's Included

  Custom Finisher Medal

  Unique medal for all finishers

  Aid Stations

  Fully stocked with nutrition and hydration

  Support

  On-course and at finish line

  Pacing Allowed for Ultra Distances

  Pacers are allowed for the 100 Mile Run (after mile 50) and 50 Mile Run (after mile 30) to provide safety and encouragement during later stages. One pacer per runner is permitted on course at any time. Pacers must register at the designated check-in area, sign a waiver, pay a $15 fee, and wear an official "PACER" bib. Pacers must be 18+ (16-17 with parental consent), can only enter/exit at aid stations, and cannot provide physical assistance or carry the runner's supplies. Pacers may switch at any aid station but must check in with station personnel. Pacers are only eligible for water and emergency medical support at aid stations.

  Family-Friendly 5K Option

  Parents are welcome to run or walk the 5K course with their young children at no additional cost!

  Organized in partnership with Healthy Kids Running Series Cedar Park. Proceeds support HKRS Cedar Park youth running programs.

  Children MUST be registered to participate

  Volunteer Opportunities

  We Need Help With:

  • Course Marshals

  • Aid Station Support

  • Registration/Packet Pickup Assistants

  All Volunteers Receive:

  • Race shirt

  • Meal and snacks

  • Community service hours

  • Future race credit

  Shifts Available:

  • Morning: 7:00 AM - 1:00 PM

  • Afternoon: 1:00 PM - 6:00 PM

  Email: [email protected] to volunteer or click here

  Ready for Your Colorado River Adventure?

  Join us for this unique trail experience along the scenic banks of the Colorado River. Challenge your endurance and connect with nature!

  REGISTER NOW!

  5k 6.2 Miles 10k 13.1 Miles 26.2 Miles 31 Miles 50k 50 Miles 100 Miles Marathon Run Trail Ultra Walk

  4000 Shaw Dr., Travis County, Texas, 78654, United States
  OpenStreetMap Google Maps

Local Clubs & Organizations