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Brazos Bend 100

Needville, Texas
Brazos Bend 100 official race logo - running event in Needville, Texas
DATE:
TIME:
LOCATION:
Needville, Texas
PRICE:
Free
DISTANCES:
6 Events: 100 Miles, 100K, 26.2 Miles, 13.1 Miles, 16 Miles, 1K

About Brazos Bend 100

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. 

Brazos Bend 100December 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. 
Needville, TX

Race Events & Distances

Choose from 6 race distances available for Brazos Bend 100 in Needville, TX. Registration includes timing, finisher medals, and post-race refreshments.

100M

100 Miles
Distance
100 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Needville, TX
NeedvilleTX
Brazos Bend 100 Organizers

Frequently Asked Questions about 100M

How long is the 100M?
The 100M covers 100 Miles.
What time does the 100M start?
The 100M starts at 6:00:00 AM.
How much does it cost to register for the 100M?
Registration for the 100M costs $0.00.
Where is the 100M located?
The 100M takes place in Needville, TX.

100K

100K
Distance
100K
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Needville, TX
NeedvilleTX
Brazos Bend 100 Organizers

Frequently Asked Questions about 100K

How long is the 100K?
The 100K covers 100K.
What time does the 100K start?
The 100K starts at 7:00:00 AM.
How much does it cost to register for the 100K?
Registration for the 100K costs $0.00.
Where is the 100K located?
The 100K takes place in Needville, TX.

26.2M

26.2 Miles
Distance
26.2 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Needville, TX
NeedvilleTX
Brazos Bend 100 Organizers

Frequently Asked Questions about 26.2M

How long is the 26.2M?
The 26.2M covers 26.2 Miles.
What time does the 26.2M start?
The 26.2M starts at 8:00:00 AM.
How much does it cost to register for the 26.2M?
Registration for the 26.2M costs $0.00.
Where is the 26.2M located?
The 26.2M takes place in Needville, TX.

13.1M

13.1 Miles
Distance
13.1 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Needville, TX
NeedvilleTX
Brazos Bend 100 Organizers

Frequently Asked Questions about 13.1M

How long is the 13.1M?
The 13.1M covers 13.1 Miles.
What time does the 13.1M start?
The 13.1M starts at 8:30:00 AM.
How much does it cost to register for the 13.1M?
Registration for the 13.1M costs $0.00.
Where is the 13.1M located?
The 13.1M takes place in Needville, TX.

Ultra Pacer

16 Miles
Distance
16 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Needville, TX
NeedvilleTX
Brazos Bend 100 Organizers

Frequently Asked Questions about Ultra Pacer

How long is the Ultra Pacer?
The Ultra Pacer covers 16 Miles.
What time does the Ultra Pacer start?
The Ultra Pacer starts at 12:00:00 PM.
How much does it cost to register for the Ultra Pacer?
Registration for the Ultra Pacer costs $0.00.
Where is the Ultra Pacer located?
The Ultra Pacer takes place in Needville, TX.

Brazos Kids Kilometer

1K
Distance
1K
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Needville, TX
NeedvilleTX
Brazos Bend 100 Organizers

Frequently Asked Questions about Brazos Kids Kilometer

How long is the Brazos Kids Kilometer?
The Brazos Kids Kilometer covers 1K.
What time does the Brazos Kids Kilometer start?
The Brazos Kids Kilometer starts at 12:00:00 PM.
How much does it cost to register for the Brazos Kids Kilometer?
Registration for the Brazos Kids Kilometer costs $0.00.
Where is the Brazos Kids Kilometer located?
The Brazos Kids Kilometer takes place in Needville, TX.

Registration Information

Registration is typically available online until race day (subject to capacity). Early registration is recommended for guaranteed entry and potential early bird pricing. Check with race organizers for specific event details and included amenities.

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