Brazos Bend 100

Event Date

December 5th, 2026

Sponsors

Sponsored by Altra Running and NeverSecond

Qualification

• Western States 100 Lottery Qualifier: sub 32-hour 100-mile
• 2024 Qualifiers: 119 participants
• 2025 Qualifiers: 133 participants

Race Description

This is the December edition of our popular Brazos Bend races, with the marquee event being the 100-mile. The Brazos Bend 100 is the largest trail race in Texas and one of the fastest trail races in the world on flat and smooth trails with incredible support from aid stations on a multi-loop course. The top 3 runners were under 16 hours in 2024.

• Course Terrain: 99.9% flat with a 10-foot rise over 0.1 of a mile
• Loop Length: ~16.7 mile
• Shoe Recommendation: Most runners will use a road shoe like the Altra Vanish Carbon 2, Torin 8, or Flow 2: trail shoes recommended for wetter conditions
• Typical Weather: Generally between 40-70 degrees

Park Information

Brazos Bend is a spectacular State Park located just South of Houston/Sugar Land and is most known for its abundance of birds and American Alligators, among other wildlife. The gators are a part of our race: there has never been an incident in the park's 50-year history. Enjoy them on your run, from a distance, and you may get some unique race photos!

Brazos Bend Challenge

Complete the 50K or 50M in April, AND the 100K or 100M in December of the same calendar year to earn the Brazos Bend Challenge Coin.

Cutoff Times

• Finish Line Closure: Sunday at 2 PM
• 100M: 32 hours
• 100K: 31 hours
• Marathon: 31.5 hours: Half Marathon: 31 hours

Event Updates

Information for the 2026 event is continuing to be updated as we get closer to event day. We do not expect any major changes, but stay tuned to your email for updates. The RunSignup page is your best place for event information. Please try our AI Chatbot to ask any questions you may have.

Event URL

Learn more about the Brazos Bend 100