Brazos Bend 100

📅 Event Date

• Date: December 6th-7th, 2025

🏃‍♂️ Sponsorship

• Sponsored By: Altra Running

🏆 Race Details

• Qualifying Event: Western States 100 Lottery Qualifier (sub 32 hour 100-mile) with 119 qualifiers in 2024!
• Highlight: This is the December edition of our popular Brazos Bend races with the marquee event being the 100-mile.

🌳 Course Description

• Largest Trail Race: The Brazos Bend 100 is the largest trail race in Texas and one of the fastest in the world on flat and smooth trails.
• Aid Stations: Incredible support from four aid stations per loop.
• Course Terrain: The course is 99.9% flat: the only "hill" is a 10-foot rise over 0.1 of a mile.
• Surface: The ~16.7mi loop consists of hard crushed rock, soft hiking trails under tree canopy, and smooth horse trails.

🦖 Wildlife Encounter

• Unique Landscape: Brazos Bend is a spectacular State Park known for its abundance of birds and American Alligators.
• Safety: The gators are a part of our race: there has never been an incident in the park's 50-year history.
• Race Photos: Enjoy them on your run, from a distance, and you may get some unique race photos!

🏅 Brazos Bend Challenge

• Earn a Coin: Complete the 50K or 50M in April 2025, AND the 100K or 100M in December 2025.

⏰ Cutoff Times

• Finish Line: Closes on Sunday at 2 PM (32h 100M, 31h 100k, 31.5h Marathon, 31h Half Marathon).
• Final Lap: Starts will be assessed to meet the course time limit at the discretion of the race director and staff.

📝 Additional Information

• Updates: Information for the 2025 event is continuing to be updated as we get closer to event day.
• Participant Info: A participant information packet will be shared in November.

🔗 Race Registration

• Register Here: Brazos Bend 100 Registration