Big Texas Ultra — 2026 — Course Map, Elevation Profile & Aid Stations

Course map, elevation profile & surface

Distance

9.9mi

Elev gain

1,013ft

Elev loss

1,023ft

High point

925ft

Low point

787ft

Surface

100% trail

Drawing the course…

The course file didn’t load.Usually a hiccup. The stats above are still right.

Race-day light

In the dark

Sunrise

6:51am

Sunset

5:40pm

Headlamp from

Not needed

For a 2:05 finish (an estimate) · starting 7:00 AM Nov 6. Dark means the sun below civil twilight.

Elevation gain, measured two ways

Source	Gain	vs lidar
Course file (GPX)	1,013ft	+87%
USGS lidar, 1 m	542ft	reference

They differ because a GPS file picks up noise on every wiggle and often takes its heights from a coarse terrain model, while lidar maps the ground itself to about a metre. We sampled this route every 98 ft against USGS 3DEP and counted each rise of 10 ft or more, on Oct 23, 2026. The planner still uses the course file.

Conditions typical race-day weather for Nov 6 at the start

Typical high

76°F

Typical low

57°F

Chance of rain

37%

2025 high

80°F

Typical = the median of 2016–2025 for Nov 6 ±3 days at the start line; a wet day has 1 mm of rain or more. Historical weather from Open-Meteo.

Race almanac 1 year of this race

Past editions

On race day it reached 80°F at the start, with a low of 63°.

Year	Start °F	Rain	Wind	Heat index
2025 Nov 14	80°/63°	dry	12mph	81°

Next race day Fri, Nov 6, 2026 · 7:00 AM start

First lightsunrise 6:51 am

6:26am

Last lightsunset 5:40 pm

6:05pm

Moonwaning crescent, up from 5:19 am

4% lit

First and last light are civil twilight, the sun 6° below the horizon. The moon is lit as at midnight after the start; headlamp hours count a typical finish from the start while the sun is below civil twilight. Worked out for the start line.

race-day weather from the Open-Meteo historical archive (ERA5) at the start line.

Reviews what runners who have been there say

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About this course

Big Texas Ultra — 2026 covers 9.9 mi (15.9 km) with 1,013 ft of elevation gain through Texas, United States. That is about 103 ft per mile of climbing, and 1,023 ft of descent. The course tops out at 925 ft and bottoms out at 787 ft. The surface is 100% trail. Race day is November 6, 2026, starting at 7:00 AM; the sun rises at 6:51 AM and sets at 5:40 PM. Typical race-day weather at the start: a high of 76°F and a low of 57°F, with a 37% chance of a wet day. The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.

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