Saturday, Dec 10, 2016

Brazos Bend 100

21901 FM 762

Needville, TX 100 Miler, 50 Miler, Marathon, 1/2 Marathon, 100 Mile Relay

This Event Took Place Sat. Dec 10, 2016

Event Postponed / Venue Change

🚨 Brazos Bend 100 - Rescheduled to January 6-7 to 7IL Ranch 🚨

Due to upcoming inclement weather and trail conditions, the Brazos Bend State Park staff has decided to reschedule this weekend's events to the weekend of January 6th and 7th, 2024 at 7IL Ranch.

We look forward to hosting our best-ever Brazos Bend 100 on January 6th and 7th at 7IL Ranch:

5389 Mill Creek Rd, Cat Spring, TX 78933

Event Postponed

This event has been postponed from Dec 02, 2023 to Jan 06, 2024 at 7IL Ranch


For the April edition, Brazos Bend 50, please register here:

The 100k has replaced the 50M (there is no 50M in December). December = 100M & 100k. April = 50M & 50k


We need volunteers to have a successful event, please share and consider signing up here:

All volunteers receive future race credits, free park access, food, swag, and a great time helping out our amazing TROT community. This is a great way to learn a ton about ultra trail running without actually running and make some friends along the way.

Western States Qualifier

The Brazos Bend 100 miler distance has been an official Western States Endurance Run qualifying race for over five years. Since BB100 is held in early December, around the same time as the WSER lottery, our race will earn you a raffle ticket to the following year's lottery for the next year's WSER. Example: If you qualify in 2023 you will earn a 2024 raffle ticket for the 2025 WSER lottery. Official letter from WSER:

"We [WSER] are pleased to inform you that the 2023 Brazos Bend 100 has been selected as a qualifying race for the 2025 Western States 100. Runners who complete the race within 30 hours will qualify to enter a lottery where the runners for Western States will be selected. You do not need to submit anything to us, we will obtain the results directly from your website.

The qualifying period for the 2025 Western States will be from November 6, 2023 through November 3, 2024. The lottery will be held on December 7, 2024 and the race itself will be run on June 28-29, 2025."


To celebrate the Texas State Parks centennial we are doing a special edition 100k (replacing the 50M) event to pair alongside the 100mi, stay tuned for more exciting updates for this full weekend of racing.
Brazos Bend 100
100 Miler / 100 kilometer / 26.2 Marathon / 13.1 Half Marathon

The Brazos Bend 100 Miler is the FASTEST trail in the nation with its mostly flat course and easy aid stations. It's the perfect place to set some personal records, and there are alligators! The wildlife is abundant in Brazos Bend State Park, but it's overshadowed in general interest by the American alligator. Birds of 290 species have been sighted in and around the park. The diverse habitat is a haven for migratory waterfowl, a variety of shorebirds, wading birds, songbirds, and raptors.

Brazos Bend State Park
21901 FM 762
Needville, TX 77461


2023 Schedule [JAN 2024]

2023 Schedule [JANUARY 2024]

Bib Pickup sponsored by Altra Running and Good Times Running Co.
Noon to 7 PM on Wednesday, January 3rd at Good Times Running Co,
22764 Westheimer Pkwy #650, Katy, TX 77450

Friday, January 5th, 2024

Packet Pickup & Merch: Noon to 7 PM at the 7IL Barn Pavilion

Personal Support Area Setup with camping at 7IL, set up your canopies, chairs, gear, etc. and can leave it setup overnight.

Saturday, January 6th, 2024

Packet Pickup (Ultra Runners Only till 8 AM): 5 AM to 8:30 AM

Start 100M : 7 AM

100k : 8 AM

Packet Pickup & Merch Reopens (for Sunday race pickup): Noon to 6 PM

Sunday, January 7th, 2024

Packet Pickup: 5 AM

Start 26.2M : 7 AM

Start 13.1M : 8 AM

Start 10K : 8:30 AM

Finish Line Closes (all events cutoff): 3 PM


Custom Event Shirt (100mi and 100k Hoodies)

Finishers' medals for the marathon, half marathon, and 10k
Buckles for the 100mi and 100k

Outstanding Volunteer Support
* Full Aid Stations
* Chip Timed Race


Pacer registration is now open in UltraSignup the same way the runners register. This must be completed by the pacers themselves (not the runner). You will be asked who your runner is and the lap. We have limited park capacity and must closely manage the amount of people entering the park. If the pacer/crew numbers are abused there will be additional restrictions. 100M runners can only have a pacer on the final three laps. 100km runners can only have a pacer on the final two laps. Plan on carpooling to save time parking.

More Information

Event's current local time: 7:35 PM CT


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