Spacerock Trail Race

Agua Dulce, United States • 17 Oct 2026

SPACEROCK Trail Race at Vasquez Rocks

The SPACEROCK Trail Race is a trail running event held at Vasquez Rocks Natural Area Park in Agua Dulce, CA on Saturday, October 17, 2026. The event offers multiple loop courses that start and finish inside the park near 10700 Escondido Canyon Road.

Distances available:

  • Half Marathon+
  • 15K
  • 10K
  • 5K

The park features distinctive rock formations, canyons, sandy creek beds, rocks and boulders. Course surfaces include packed dirt, sandy sections and single-track trails. The Half Marathon+ covers just under 14 miles with more than 3200 feet of elevation gain and descent. The 15K includes a large mountain climb and extended single-track sections on the Pacific Crest Trail. Both the 15K and Half Marathon+ pass through a dark tunnel on the Pacific Crest Trail that is over 500 feet long. The 5K and 10K follow a loop inside Vasquez Rocks with some moderate climbing.

Race support includes five aid stations positioned along the courses; runners encounter between two and six stations depending on distance. Stations provide water, electrolyte products from Gnarly Nutrition, gels, chews, salt capsules and snacks. The event has a cupless policy at aid stations and provides refill access at course stations. Finisher items listed for participants include a collectible medal, shirt and a space bag. Visit the organization's website for the most recent information.

Race information

14 mi
Half Marathon+
15 km
15k
10 km
10k
5 km
Visit the organization's website for the most recent information.
Trail runs nearby

A weekend camping and trail event in Pearblossom, CA that raises funds for Chingonas on the Run. Participants attempt a six hour loop challenge on singletrack around Mount Hillyer with aid at a central basecamp.

A community July 4 event in Newhall Park featuring a flat, paved 5K along the parade route, a Kid K, and a Masters Mile Walk, with shirts, medals, an expo, and awards benefiting local high school cross-country programs.

Multi-distance trail race in Griffith Park with 5k, 10k, 15k and half marathon options on a marked, hard-packed dirt course; includes medals, free photos, aid station and free parking.

An evening trail event in Pasadena's Lower Arroyo Park offering 6K and 12K routes with chip timing and aid stations. The finish includes tacos and drinks and runners receive a commemorative shirt and wooden medal.

Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.