Night Claw

JUL
17
2027
Night Claw in Glen Rose TX is a nighttime trail race at Dinosaur Valley State Park with multiple distances and an optional Claw Challenge where a runner chases participants.
Sat 17 Jul 2027
20 kilometers 10 kilometers 5 kilometers

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About the race

Night Claw is a nighttime trail race at Dinosaur Valley State Park near Glen Rose, TX, organized by Texas Outlaw Running. The event offers multiple distances and timed options with a mix of dirt and rocky out-and-back trails on park routes.

Available distances include:

  • 20K
  • 10K
  • 10K Ruck
  • 5K
  • 4 Hour
  • 6 Hour
  • 8 Hour

The course uses park trails and includes hilly terrain; the 10K loop shows about 650 ft of elevation gain and is the loop used by 10K, 4-hour, 6-hour, and 8-hour participants. The event lists historic nighttime temperatures in the mid 70s to mid 90s Fahrenheit. This is a no cup race, so participants need their own water-carrying system. Aid stations, course markings, photography, and volunteer support are provided.

An optional Claw Challenge adds a chase element: participants who opt in receive bibs with tear tags. A designated runner called the Claw pursues participants on the 10K route and may remove tear tags when they catch someone. Finishers whose tear tag remains intact receive a different finisher attachment than those who were caught. Event gear and awards include a tri blend tee, a finisher medal, placement awards for 5K/10K/10K Ruck/20K, and most loops awards for timed events. Visit the organization's website for the most recent information.

20 km
20k
10 km
10k
10 km
10k Ruck
5 km
8 Hour
6 Hour
4 Hour

Events nearby

Trail races at the Six-O Ranch in Cleburne TX with 50K, marathon, half marathon and 6 mile options on mixed single track and ranch roads.
Trail races on ranch terrain in Glen Rose TX on October 10, 2026 with distances from a kids 1K to a 100K ultra, on-course provisions, and primitive camping.
A multi-day Spartan obstacle race at Twin Canyons Ranch near Granbury, TX, offering distances from a 5 km sprint to a 50 km Ultra plus kids races and workshops.
Experience the scenic sights of Dinosaur Valley State Park at this endurance event featuring distances from 5 miles to 100 miles. The course offers rolling terrain and serves as a Western States Endurance Run qualifier.
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