Brazos Bend 100

Needville, United States • 6-7 Dec 2025

Brazos Bend 100 is Trail Racing Over Texas's December edition held at Brazos Bend State Park, just south of Houston. The marquee events include 100M, 100K, 26.2M, and 13.1M, with a Brazos Bend Kids Kilometer and an Ultra Pacer as extras. The course is famously flat and fast—99.9% pancake-flat—with a single 10-foot rise per loop and runs on hard crushed rock, shaded hiking trails, and smooth horse trails around four fully stocked aid stations per loop. The race is a Western States Endurance Run qualifier and takes place amid wildlife and birds in the park. Spectators and volunteers help create a welcoming, supportive vibe. Visit the organization's website for the most recent information.

Race information

UTMB 20K UTMB 100K
100 km
100k
100m
13.1m
26.2m
Brazos Kids Kilometer
Ultra Pacer
Visit the organization's website for the most recent information.
Trail runs nearby

Brazos Bend 50 is an April ultramarathon event at Brazos Bend State Park in Needville, TX, just south of Houston. It offers multiple distances: 50-mile, 50K, 25K, 10K, 5K, Kids Run, and a 50M pacer option. The course is promoted as the fastest trail in Texas—99.9% flat with only a 10-foot hill—cover..