Brazos Bend 100
From Trail Racing Over Texas
- Date Sat 6th December 2025 - Sun 7th December 2025
- Time 6:00AM CST
- Location Needville, Texas
- Price Free - $279.25
- Races 6 races
- Distances Ultra, Marathon, Half Marathon, 1km
Event summary
Get ready for an exhilarating experience at the Brazos Bend 100, hosted by Trail Racing Over Texas, taking place from December 6th to 7th, 2025, in the picturesque Needville, Fort Bend! This thrilling event features the marquee 100-mile race, recognized as the largest trail race in Texas and one of the fastest in the world, set on a flat and smooth multi-loop course that guarantees amazing support from aid stations along the way. With a stunning course that is 99.9% flat, participants will enjoy a mix of hard crushed rock, soft hiking trails, and smooth horse trails. The previous year's top three runners completed the race in under 16 hours, showcasing the competitive spirit of this iconic event!
In addition to the 100-mile race, runners can also challenge themselves with 50K, 50M, and other distances. December weather is typically perfect for running, ranging from 40 to 70 degrees, making it an ideal time to hit the trails. And don’t forget to keep an eye out for the park’s famous American Alligators—though they pose no threat, they make for some unforgettable race day photos! Complete the required races to earn the coveted Brazos Bend Challenge
In addition to the 100-mile race, runners can also challenge themselves with 50K, 50M, and other distances. December weather is typically perfect for running, ranging from 40 to 70 degrees, making it an ideal time to hit the trails. And don’t forget to keep an eye out for the park’s famous American Alligators—though they pose no threat, they make for some unforgettable race day photos! Complete the required races to earn the coveted Brazos Bend Challenge
Organiser's Description
December 6th, 2025
Sponsored by Altra Running
Western States 100 Lottery Qualifier (sub 32-hour 100-mile) with 119 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 aid stations on a multi-loop course. The top 3 runners 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 will use a road shoe like the Altra Vanish Carbon 2, Torin 8, or Flow 2 but under wetter conditons a trail shoe may be a better choice. Conditions in December can have a mix of anything, but are typically great for running, genneraly between 40-70 degrees. 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 park's 50-year history. Enjoy them on your run, from a distance, and you may get some unique race photos!
Complete the 50K or 50M in April 2025, AND the 100K or 100M in December 2025 to earn the Brazos Bend Challenge Coin.
Cutoff Times: for ALL races, the finish line closes on Sunday at 2 PM (32h 100M, 31h 100k, 31.5h Marathon, 31h Half Marathon). Final lap starts will be assessed to meet the course time limit at the discretion of the race director and staff.
_Information for the 2025 event is continuing to be updated as we get closer to event day. We do not expect any major changes, but stay tuned to your email for updates. The RunSignup page is your best place for event information. Please try our AI Chatbot to ask any questions you may have._
Sponsored by Altra Running
Western States 100 Lottery Qualifier (sub 32-hour 100-mile) with 119 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 aid stations on a multi-loop course. The top 3 runners 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 will use a road shoe like the Altra Vanish Carbon 2, Torin 8, or Flow 2 but under wetter conditons a trail shoe may be a better choice. Conditions in December can have a mix of anything, but are typically great for running, genneraly between 40-70 degrees. 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 park's 50-year history. Enjoy them on your run, from a distance, and you may get some unique race photos!
Complete the 50K or 50M in April 2025, AND the 100K or 100M in December 2025 to earn the Brazos Bend Challenge Coin.
Cutoff Times: for ALL races, the finish line closes on Sunday at 2 PM (32h 100M, 31h 100k, 31.5h Marathon, 31h Half Marathon). Final lap starts will be assessed to meet the course time limit at the discretion of the race director and staff.
_Information for the 2025 event is continuing to be updated as we get closer to event day. We do not expect any major changes, but stay tuned to your email for updates. The RunSignup page is your best place for event information. Please try our AI Chatbot to ask any questions you may have._
Races
-
100m
Incl. $14.25 Fee & Hoodie
Sat 6th December 2025 (6:00AM CST)
$279.25
CLOSEDUnder 32 hours for Western States Qualification. 32 Hour Cutoff. -
100k
Incl. $14.50 Fee & Long Sleeve
Sat 6th December 2025 (7:00AM CST)
$239.50
CLOSED31 Hour Cutoff. -
26.2m
Incl. $8.50 Fee & T-Shirt
Sat 6th December 2025 (8:00AM CST)
$133.50
CLOSED30 Hour Cutoff. -
13.1m
Incl. $7.60 Fee & T-Shirt
Sat 6th December 2025 (8:30AM CST)
$117.60
CLOSED29.5 Hour Cutoff. -
Brazos Kids Kilometer
Incl. Kids Shirt
Sat 6th December 2025 (12:00PM CST)
Free
CLOSED12 Years and Under -
Ultra Pacer
Incl. $1.60 Fee & T-Shirt
Sat 6th December 2025 (12:00PM CST)
$11.60
CLOSEDAll pacers must be registered. Pacers are not required, we will have over 300 ultra runners and tons of support, you will not be alone! 100 Mile runners may have a pacer on the final two (2) loops. 100 Kilometer runners may have a pacer for the final loop only. NO pacers in the marathon, or half marathon events. Pacer registration includes: Park Access, Trail Access, Parking, Shuttle, Expo Access, Pacer Bib, Aid Station Access/Support. A few important notes and instructions: - The pacer must be the one to register; the runner can not register on their behalf - If the runner purchases the pacer add-on a registration coupon code will be emailed - The pacer registration includes their park pass - Pacers can pick up their pacer bib at any of the packet pickups or the start line - Runners may pick up packets (runner, pacer, and extra park passes) on behalf of others by providing their QR code(s) - We will have additional event shirts and hoodies available to purchase for your pacers, family, and crew at the event - All crew, family, and friends are required to purchase a park pass from TROT (unless they are a registered participant, pacer, volunteer, or under 13). Wristbands can be picked up from the packet pickup/merchandise area. Show proof of purchase at the park entrance. Carpool: Please try and limit the number of vehicles entering the park; we are very limited on parking spaces Pacer Rules/Information: - You may only have one pacer at a time - 100 Mile runners may have a pacer on the final two (2) loops - 100 Kilometer runners may have a pacer for the final loop only - The main loop is ~16.7 miles; pacers may start/finish at the beginning of the loop or from 40 Acre (mile 3.1), Nature Center (mile 5.9), or Sawmill (mile 12.2), but pacer transportation is not provided outside of the normal parking shuttle option (does not go to Sawmill). It is recommended that pacers start/finish at the Elm Lake Pavilion.
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21901 Farm to Market Rd 762, Needville, 77461, TX, United States
Brazos Bend 100
