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Brazos Bend 100

Sat December 7 - Wed December 25 Needville, TX 77461 US Directions

Events

100M

12/07 - 12/08 6:30AM CST - 2:30PM CST
Open to ages 16 - 99.

100K

12/07 - 12/08 7:00AM CST - 2:30PM CST
Open to ages 16 - 99.

26.2M

12/07 - 12/08 7:30AM CST - 2:30PM CST
Open to ages 14 - 99.

13.1M

12/07 - 12/08 8:00AM CST - 2:30PM CST
Open to ages 10 - 99.

Wildrose Women's Sub Ultra Trail Race

12/07 - 12/08 7:45AM CST - 2:30PM CST
Open to ages 10 - 99.

Brazos Kids Kilometer

12/07 12:00PM CST - 12:30PM CST

Ultra Pacer

12/07 - 12/08 12:00PM CST - 12:30PM CST

Race Website

Additional race information can be found at https://www.trailracingovertexas.com/brazos-100.

Place

21901 Farm to Market Rd 762
Needville, TX US 77461

Description

December 6th-7th, 2025

Western States 100 Lottery Qualifier (sub 30 hour 100-mile) with 98 qualifiers in 2024!

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 four aid stations per loop. The top 3 were under 16 hours in 2024. The course is 99.9% flat, and the only "hill" is a 10-foot rise over 0.1 of a mile. The rest of the ~16.7mi loop is flat surfaces that move from hard crushed rock, soft hiking trails under tree canopy, and smooth horse trails. Most runners get away with a road shoe. Conditions in December can have a mix of anything but are typically great for running. 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 parks 50 year history. Enjoy them on your run, from a distance, and you may get some unique race photos!

2024 Info Packet & Schedule

The 2024 Runners Information Packet is now available and continues to be updated with important information.

The current schedule is subject to changes.

Tuesday, December 3rd:

​Packet Pickup sponsored by Altra Running and Good Times Running Co.

  • Noon to 7 PM at Good Times Running Co, 22764 Westheimer Pkwy #650, Katy, TX 77450

Friday, December 6th, 2024

  • Packet Pickup & Merch: Noon to 7 PM at Elm Lake Pavilion
  • Personal Support Area Setup at Elm Lake, set up your canopies, chairs, gear, etc., and can leave it set up overnight but no camping in this area.
  • Bag Drop for Sawmill Aid Station

 Saturday, December 7th, 2024

  • Parking Shuttle Begin: 5 AM
  • Packet Pickup Elm Lake Pavilion (Ultra Runners Only till 7 AM): 5 AM to 8:30 AM
  • 100M Start: 6:30 AM
  • 100k Start: 7:00 AM
  • Marathon Start: 7:30 AM
  • Wildrose Women's Sub Ultra 13.1M Start: 7:45 AM
  • Half Marathon Start: 8:00 AM
  • Free Kids Race: Noon

Sunday, December 8th, 2024

  • ​​Finish Line Closes (all events cutoff): 2:30 PM SUNDAY

Cutoffs

The finish line for all events closes on Sunday at 2:30 PM. 

Cutoffs per event:

  • 100M: 32 Hours (Note 30H cutoff for Western States Qualifier)
  • 100K: 31.5 Hours
  • Marathon: 31 Hours
  • Half Marathon: 30.5 Hours

Your time starts when your event starts (gun time) NOT when you cross the start line. No early starts. No official finishers after 2:30 PM. 

The Race Director will track and assess each runner's progress and has the ultimate decision, along with the Medical Director and Park Staff, throughout the event for runners to continue additional loops, or not, for their own safety, venue permit timing, and courtesy to our staff and volunteers.

Awards and Prizes

This year we are adding a cash prize purse for the 100 Mile:

First Place Male & Female: $1000

Second Place Male & Female: $500

Third Place Male & Female: $250

Prizes for Top Overall and 10-year Age Category winner prizes for all events in both Male and Female categories: U20, 20-29, 30-39, 40-49, 50-59, 60-69, 70+

All finishers receive an event-specific finishers award: 100M Buckle (sub 16h, sub 22h, sub 30h, and general), 100k Buckle, Marathon Medal, and Half Marathon Medal.

2024 Designs coming soon...

Course and Aid Stations

Flat and fast. Under dry conditions, most runners will choose road shoes on these wide smooth pathways with minimal debris and good footing. Some sections can become muddy when wet.

100 MILE COURSE

100 KILOMETER COURSE

13.1 / 26.2 COURSE

Brazos Bend 100 will have a total of four fully stocked aid stations on the course.

ALL runners must carry a form of hydration (bottle, flask, bladder, etc.) there will be NO cups at the aid stations.

  • 40 Acre Lake Aid Station (no drop bags)
  • Nature Center Unmanned Water (13.1/26.2)
  • Hale Lake Aid Station (no drop bags)
  • Sawmill Aid Station
  • Elm Lake Start/Finish Main Aid Station (personal area setup)

Runners, family, friends, and crew are encouraged to set up their own hang-out support area around the large grass area at the start/finish for extended rest periods, personal gear, and preferences for food and hydration. It is common for clubs, teams, and families to have a tent set up to enjoy the day. There is no camping at Elm Lake Pavilion. Runners can have access to their personal gear between loops.

Photos

All Trail Racing Over Texas events supply free photos to our runners!

Pacers and Crew

Runners, do not purchase extra park passes for your pacers, they will be required to purchase as part of their pacer registration on RunSignup (see registration page). You may purchase extra park passes for your crew/family/friends (mandatory for all park entrants 13y and Older - see Park Passes and Camping Section for more info).

100 Mile runners may have a pacer on the final three (3) loops, after halfway.

100 Kilometer runners may have a pacer for the final loop only.

We will have over 300 registered ultra runners and tons of support, you will not be alone! Pacers are not required and should only be used as "safety runners" to accompany runners that may need some company. No "muling" (carrying or sharing of gear for your runner). 

NO pacers in the marathon, or half marathon events.

​You may only have 1-person pacing you at a time. Pacers can only start/finish at the Main Start/Finish after check-in and must be on foot.​

​Pacers will register the same way participants register on RunSignup.

​Crew is allowed at any aid station in limited amounts. Crew will need to shuttle, walk, or bike to access (there is no stopping a vehicle at an aid station). Crew can not use aid station supplies. Pacers have full access to the aid stations (same as registered runners). 

​Crew, pacer, and support numbers will be limited by vehicle, support for individuals should carpool in a single vehicle. Excessive amounts of vehicles per runner will not be permitted to enter the park (there will be no parking available if this is abused). All individuals associated with the race, including crew, support, and pacers are permitted to ride the parking shuttles for free in the park for access to the Elm Lake pavilion Start/Finish from the other parking areas.

Park Passes and Camping

Driving and parking on paved surfaces only, areas will be designated and guided by park staff. Park police will strictly monitor for speed and cars stopped on roadways. Shuttles will run between parking lots and the Elm Lake Start/Finish. The Start/Finish is a half-mile walk from the Nature Center Lot. No/Limited Parking at Elm Lake except for staff, volunteers, handicapped, and emergency vehicles. No stopping on roadways to load/unload.

Special Event Park Passes purchased via TROT are required for all individuals 13 years and older. Annual Park Passes are not accepted during special events for event attendees in any start park for any type of special event. Park passes are included in runner and pacer registration fees, and additional passes are available here. The park fees are passed through directly to the park and are not refundable. 

​State Park camping must be reserved via the online reservation system. No car camping or overnighting at Elm Lake or any parking lots.

Additional primitive camping, no-hookup RV spots, and overflow parking is available across the street from the park at the Brazos Bend RV Park, no reservation required (do not contact BBRV directly). We will have porta-cans and shuttle pickup at this location.

Sponsors

Altra Running

Thank you to our multi-year presenting sponsor, Altra Running. Featuring foot-shaped toe boxes and minimal drop for trail, road, and casual footwear. Be sure to checkout the 2024 lineup of their greatest models to date and stay tuned for discounts and giveaways for the Brazos Bend 100 presented by Altra Running. 

Race Contact Info

If you have any questions about this race, click the button below.

Referrals & SWAG Bonuses

Once you are registered you will receive a referral code to share with your friends, family, social media followers, clubs, and teams. After 5 registrations using your code, you will receive cash back and 10 registrations receive a TROT swag item bonus.

UltraSignup Credits

If you previously had credit on UltraSignup (including 2023 BB100 Credit), Volunteering Credit, etc. you should first check your RunSignup account for any currently available vouchers. If you expect to have credit and it is not showing you may submit a credit request via the TROT Credit Request Form. TROT credit is only available for use with TROT races and must meet our policy requirements, and registration terms and conditions.

2024 Brazos Challenge Coin

In 2024 we are introduced the Brazos Bend Challenge and as a bonus have decided to include our rescheduled 2023 BB100 (Jan 2024) to give three opportunities to rack up your miles (or kilometers).

The challenge is simple, run two out of three OR three of the three Brazos Bend ultra-distance events in 2024, and receive a bonus challenge coin based on the total:

  • 150M (1 x 100M and 1 x 50M)
  • 200M (2 x 100M)
  • 250M (2 x 100M and 1 x 50M)
  • 150KM (1 x 100KM and 1 x 50KM)
  • 200KM (2 x 100KM)
  • 250KM (2 x 100KM and 1 x 50KM)

Those who complete one of the challenges will receive their coins in December. 

Western States Endurance Run (WSER) Lottery 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 next year's WSER. Example: If you qualify in 2024 you will earn a 2025 raffle ticket for the 2026 WSER race lottery. The annual list of races with official confirmation from WSER comes in the Fall and will be announced. 

"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."

Volunteer

Volunteer opportunities will open soon. We are currently accepting club/team aid station takeover requests (please email volunteer@trailracingovertexas.com).

Earn free race credits and valuable experience while helping your ultra trail community of runners and meeting new friends. Volunteer as an individual or a group (team/club aid station takeovers wanted!). Family, friends, and youth (accompanied) can earn future race credits for themselves or pass them on to others. 

Volunteering spots are open for registration from the sidebar menu.

Visit the Trail Racing Over Texas Volunteer Page for more information. 

Participant Management (RunSignup FAQ and Tutorials)

Registration Questions and Changes

Need to drop down in distance, defer, transfer, cancel, update swag selection or personal information? See the link for tutorials.

Register For a Race
View/Sign the Race Waiver
Update T-Shirt/Giveaway
Question Response Management
Defer Registration/Claim Deferral
Add-On Management
Make Purchases on RunSignup
Resend the Confirmation Email
Request a Refund
View/Edit a Registration
Transfer to Another Runner
Transfer to Another Event
Transfer to Another Race
Redeem a Coupon Code
Claiming Event Insurance
Redeem a Gift Certificate
Update Corral Selection
Update Estimated Finish Time
Update Participant Information for an existing registration
View Digital Bib
Shipping Address Management
What is Protecht Regshield?
Add a Member to Your Club Membership

... and more, see link for details prior to contacting the race with registration management questions - most can be completed by the registered participant. 

Post Race Breakfast by Stoked Oats

Enjoy granola and yogurt after your run provided by our sponsor Stoked Oats. Find them on the shelved of Costco and HEB.

Wildrose Women's Sub Ultra 13.1M

We're excited to partner with Wildrose Women's events to bring you a women's only start of the half marathon. Women will have the choice between either of the half marathon start times. Women who decide to participate in the Wildrose Women's Sub Ultra will receive a bonus "Mala" finisher necklace to wear fashionably any day they like.

Registered and can't make it? Use "Race Transfer"

If you can no longer attend the event, your best option is to head to your registration on RunSignup and complete a Race Transfer. You will be credited a % of your original amount based on when the transfer is initiated for use on a future event. There are other options available including deferral, participant/bib transfer, or use of your race insurance if it was purchased.

Please do not collect a race bib if you do not plan on starting.

Directions

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