Brazos Bend 100K

Needville, TX, USA · December 5, 2026·
partly-cloudy-day53°·63° high·Light·Dry
7
Register

Race Day Weather

partly-cloudy-day
53°at start
63° high
Light
Dry
Your goal
0:00:00

Comfortable temps, warming through the race

Mild 53°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 63°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. Moderate humidity at 73% is worth noting for effort level, especially in later miles.

Race day forecast available in 43 days
partly-cloudy-night10
partly-cloudy-night10
partly-cloudy-night10
partly-cloudy-day9
partly-cloudy-day8
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day6
partly-cloudy-day6
partly-cloudy-day7

Pace Calculator

62.1mi
0:00:00
HH:MM:SS
Pace
—

Enter a finish time to see what race day does to it.

Get forecast alerts for Brazos Bend 100K

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Info

The 100K at Brazos Bend State Park starts with an opening loop and then repeats the main roughly 16.7 mile loop, finishing at the Elm Lake pavilion. The route is flat and fast on crushed rock, tree-shaded hiking trail and smooth horse trail, with a single 10-foot rise. Runners share the park with alligators and a large bird population.

Race weekend

Saturday, December 5
6:00 AM100 Mile (100.0 mi)
7:00 AM100K (62.1 mi)
8:00 AMMarathon (26.2 mi)8:30 AMHalf Marathon (13.1 mi)

FAQ

When is the 2026 Brazos Bend 100K?

The 2026 Brazos Bend 100K will be held on Saturday December 5, 2026.

What will the weather be like for the 2026 Brazos Bend 100K?

The forecast calls for a high of 68°F and a low of 52°F with a 10% chance of rain. Check our detailed hourly forecast above for the best 100K race plan.

Historical Weather

Based on 2 years of data
Avg Temp
55°F
L:49° H:61°
RunScore
8
Conditions
Rain Freq
50%
1 of 2 yrs
Wind6mph
Dew48°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-night
52°/67°-
7
2024
cloudy
46°/56°Light
9