Brazos Bend 100
- Date Sat 6th December 2025 - Sun 7th December 2025
- Time 6:30AM EST
- Location Needville, Texas
- Price Free - $255.40
- Races 7 races
- Distances Ultra, Marathon, 1km
Event summary
Get ready for an unforgettable weekend at the Brazos Bend 100, taking place from December 6th to 7th, 2025, in the beautiful Needville, Fort Bend area of Texas. This thrilling event is a must for trail running enthusiasts, featuring the marquee 100-mile race, which is a Western States 100 Lottery Qualifier for those who finish in under 30 hours. Known as the largest trail race in Texas, the Brazos Bend 100 offers a unique opportunity to run on flat and smooth trails, making it one of the fastest trail races globally. With a course that is 99.9% flat, participants can enjoy a mix of hard crushed rock, soft hiking trails, and smooth horse paths, all while being supported by four aid stations per loop.
Runners can also explore the scenic Brazos Bend State Park, famous for its diverse wildlife, including American alligators and a variety of bird species. These fascinating creatures add an exciting touch to the race experience, as participants can catch a glimpse of them from a safe distance. Whether you're tackling the 50K, 50M, 100K, or 100M, this event is perfect for all levels of runners looking to push their
Runners can also explore the scenic Brazos Bend State Park, famous for its diverse wildlife, including American alligators and a variety of bird species. These fascinating creatures add an exciting touch to the race experience, as participants can catch a glimpse of them from a safe distance. Whether you're tackling the 50K, 50M, 100K, or 100M, this event is perfect for all levels of runners looking to push their
Organiser's Description
December 6th-7th, 2025
Sponsored by Altra Running
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!
Complete the 50K or 50M in April 2025, AND the 100K or 100M in December 2025 to earn the Brazos Bend Challenge Coin.
_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 email for updates. A participant information packet will be shared in November. _
Sponsored by Altra Running
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!
Complete the 50K or 50M in April 2025, AND the 100K or 100M in December 2025 to earn the Brazos Bend Challenge Coin.
_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 email for updates. A participant information packet will be shared in November. _
Races
-
100m
Incl. $15.40 Fee & Hoodie
Sat 6th December 2025 (6:30AM EST)
$255.40
Under 30 hours for Western States Qualification. 32 Hour Cutoff. -
100k
Incl. $13.00 Fee & Long Sleeve
Sat 6th December 2025 (7:00AM EST)
$213.00
31.5 Hour Cutoff. -
26.2m
Incl. $7.30 Fee & T-Shirt
Sat 6th December 2025 (7:30AM EST)
$112.30
OPENS MAR 2531 Hour Cutoff. -
13.1m
Incl. $6.40 Fee & T-Shirt
Sat 6th December 2025 (8:00AM EST)
$96.40
OPENS MAR 2530.5 Hour Cutoff. -
Wildrose Women's Sub Ultra Trail Race
Incl. $6.40 Fee & T-Shirt
Sat 6th December 2025 (7:45AM EST)
$96.40
OPENS MAR 25 -
Brazos Kids Kilometer
Incl. Kids Shirt
Sat 6th December 2025 (12:00PM EST)
Free
OPENS AUG 2512 Years and Under -
Ultra Pacer
Incl. $1.60 Fee & T-Shirt
Sat 6th December 2025 (12:00PM EST)
$11.60
OPENS NOV 25All 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 three (3) loops, after halfway. 100 Kilometer runners may have a pacer for the final loop only. 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. Pacer registration includes: Park Access, Trail Access, Parking, Shuttle, Expo Access, Pacer Bib, Aid Station Access/Support.
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