Brazos Bend 100
- Date Sat 6th December 2025 - Sun 7th December 2025
- Time 6:00AM CST
- Location Needville, Texas
- Price Free - $263.50
- Races 6 races
- Distances Ultra, Marathon, Half 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 stunning Needville, Fort Bend area of Texas! This exhilarating event is a must-attend for trail running enthusiasts, featuring the marquee 100-mile race, renowned as the largest trail race in Texas and one of the fastest in the world. With a course that is 99.9% flat, runners will enjoy smooth, hard-packed trails, soft hiking paths beneath a beautiful tree canopy, and well-maintained horse trails, making it perfect for road shoes.
The Brazos Bend 100 is not only a Western States 100 Lottery Qualifier but also offers incredible support with four aid stations per loop, ensuring participants have everything they need to succeed. With a vibrant atmosphere and the chance to spot local wildlife such as birds and American alligators (from a safe distance!), this event promises to be as scenic as it is thrilling. Whether you're tackling the 50K, 50M, 100K, or the main 100M event, you'll be part of a community of runners pushing their limits and celebrating the joy of trail running. Mark your calendars and prepare for an
The Brazos Bend 100 is not only a Western States 100 Lottery Qualifier but also offers incredible support with four aid stations per loop, ensuring participants have everything they need to succeed. With a vibrant atmosphere and the chance to spot local wildlife such as birds and American alligators (from a safe distance!), this event promises to be as scenic as it is thrilling. Whether you're tackling the 50K, 50M, 100K, or the main 100M event, you'll be part of a community of runners pushing their limits and celebrating the joy of trail running. Mark your calendars and prepare for an
Organiser's Description
December 6th-7th, 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 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.
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 email for updates. A participant information packet will be shared in November. _
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 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.
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 email for updates. A participant information packet will be shared in November. _
Races
-
100m
Incl. $13.50 Fee & Hoodie
Sat 6th December 2025 (6:00AM CST)
$263.50
Under 32 hours for Western States Qualification. 32 Hour Cutoff. -
100k
Incl. $13.60 Fee & Long Sleeve
Sat 6th December 2025 (7:00AM CST)
$223.60
31 Hour Cutoff. -
26.2m
Incl. $7.60 Fee & T-Shirt
Sat 6th December 2025 (8:00AM CST)
$117.60
30 Hour Cutoff. -
13.1m
Incl. $6.70 Fee & T-Shirt
Sat 6th December 2025 (8:30AM CST)
$101.70
29.5 Hour Cutoff. -
Brazos Kids Kilometer
Incl. Kids Shirt
Sat 6th December 2025 (12:00PM CST)
Free
OPENS 01 AUG12 Years and Under -
Ultra Pacer
Incl. $1.60 Fee & T-Shirt
Sat 6th December 2025 (12:00PM CST)
$11.60
OPENS 01 NOVAll 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, 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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Brazos Bend 100
