Brazos Bend 100
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Event overview
The Brazos Bend 100 takes place December 6-7, 2025 at Brazos Bend State Park in Needville, Texas (21901 Farm to Market Rd 762). Event distances offered include:
- 100M
- 100K
- Marathon (26.2M)
- Half Marathon (13.1M)
- Brazos Kids Kilometer
- Ultra Pacer
The 100-mile distance is an official Western States Endurance Run lottery qualifier when finished within 32 hours. The event also offers a Brazos Bend Challenge Coin for runners who complete a 50K or 50M in April and a 100K or 100M in December of the same year.
Course, support and cutoffs
The course uses wide, smooth pathways and is described as 99.9% flat, with a single 10-foot rise. Surfaces include hard crushed rock, soft shaded hiking trails, and horse trails; many runners may wear road shoes under dry conditions. The loop is approximately 16.7 miles and course markings are color coded.
There are four staffed aid stations on the course: Elm Lake (start/finish), 40 Acre Lake, Hale Lake, and Sawmill; a Nature Center unmanned water point serves shorter events. All runners must carry a hydration device; there will be no cups at aid stations. Drop bags for Sawmill are handled via Elm Lake. The finish line for all events closes on Sunday at 2:00 PM; the 100M cutoff is 32 hours and the 100K cutoff is 31 hours. Final decisions on lap starts and runner continuation rest with the race director, medical staff, and park officials. Visit the organization's website for the most recent information.
