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Brazos Bend 100

Quick facts

Distance Ultra marathon

About Brazos Bend 100

Looking for a “wild” experience? You will find it at Brazos Bend State Park. Brazos Bend contains areas of coastal prairie, bottomland forest, and a wide range of wetlands including open and semi-open lakes and transitional marshlands.

Highlights of the Park’s numerous inhabitants include over 300 species of resident and visiting migratory birds and mammals such as the white-tailed deer, nine-banded armadillo, raccoon, and North American river otter. The most noteworthy and popular residents of the park are the relatively large population of American alligators.

The Brazos Bend course is the fastest trail in texas trail running. The 100 mile course is 99.9% flat with only one place where the hill is 10 feet. Other than that you will be running on flat surface that moves from hard crushed rock, soft trail under canopy and easy horse trails as well.


1/2 Marathon

  • 21.097km


  • 42.195km

50 Miler

  • 80.467km

100 Miler

  • 160.934km


Aid Stations

All aid stations are FULL AID STATIONS and will be full stocked with Texas Style Goodies.Medical including bandages, vasoline, band aids and other medical needs.

Award Medals

Top 3 Men/Women for Each Race and 1st Relay Team will win ICEBREAKER MERINO shirts donated from our Title Sponsor! Texas Two-Step Award for those who complete the Brazos Bend 50 and Brazos Bend 100 in the same Year!

Equipment Storage

You can have a drop bag at all of the aid stations for the 50 mile and 100 mile distances.

Maximum Time

The cutoff for the event is 6 am the following day.


Elm Lake Pavilion





Runners have the opportunity to interact with the various species of wildlife in the park, while enjoying great scenery.


The course starts and finishes at the Elm Lake Pavilion.

The race information has been found on the official website of the event or through publicly available sources. Always refer to the official website the latest race information. Please let us know if any data is wrong or missing, by emailing us.