Texas Trail Races & Ultramarathons

Texas has several trail races and ultramarathons on our calendar, from the remote Big Bend Ultra in the Chihuahuan Desert borderlands to Hill Country festivals near Austin offering everything from a 5K to 100 miles. Most racea run October through March — Texas trail racing, for the most part, takes the summer off entirely because of the heat.

Dallas
November 14, 2026
Rockledge Rumble
Marathon
50K
Ultramarathon
15K
28K
Big Bend
January 17, 2027
Big Bend Ultra
10K
21K
50K
100K
Ultramarathon
Fort Worth
March 20, 2027
Grasslands Trail Run
Half Marathon
Marathon
50 Mile
Ultramarathon
100 Mile
April 3, 2027
Beast of the Brazos
10 Mile
5K
50K
50 Mile
Ultramarathon
September 4, 2027
Six-O Trail Run
10K
Half Marathon
Marathon
50K
Ultramarathon

Masters Athlete Insights

Texas is the one state on this list where the calendar itself tells the story — every race runs October through March, and few, if any,run in summer. That's not a scheduling accident; it's heat management at the race-director level. For a masters athlete, the same logic applies to training: hydration and electrolyte strategy matter more here, even in the "cooler" months, than altitude protocols do in Colorado or vertical-gain conditioning does in the Pacific Northwest.

Our 10-week maintenance program is a reasonable structure for the shorter Hill Country races, and the 16-week 50K plan is the right base if a longer distance at Colorado River Run or Bluebonnet is the goal.

FAQ

What is the best Texas trail race for beginners?

The Bluebonnet Trail Run's 5K or 10K option at Reveille Peak Ranch — a well-supported Hill Country venue with short-distance options and none of the logistical demands of a remote race like Big Bend.

What is the hardest trail race in Texas?

The Big Bend Ultra, mainly because of remoteness rather than terrain alone — it runs through over 300,000 acres of Big Bend backcountry where water and fuel are genuinely scarce, on top of distance options up to 100K.

When is trail racing season in Texas?

October through March. Every race on this list falls in that window — Texas trail racing avoids the summer heat entirely rather than working around it.

Do Texas trail races deal with heat even in winter?

Often, yes. Texas Hill Country and West Texas can still hit 80°F+ on winter race days — hydration planning matters even for races scheduled specifically to dodge summer heat.

Are there masters (40+) divisions at Texas trail races?

Most races on this list award age-group results in 5- or 10-year brackets rather than one "masters" category, but brackets vary by organizer — check each race's rules page before registering if it matters to you.

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