Spacerock Trail Race
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SPACEROCK Trail Race, Vasquez Rocks Natural Area Park, Agua Dulce, CA : October 17, 2026
The SPACEROCK Trail Race takes place at Vasquez Rocks Natural Area Park in Agua Dulce, California. The event offers multiple looped trail distances and marks the race's tenth anniversary in 2026.
Available race distances:
- Half Marathon+
- 15K
- 10K
- 5K
The courses run over varied terrain including packed dirt, sandy creek beds, rocks, boulders, canyons, and single-track trails. The Half Marathon+ covers just under 14 miles with over 3200 feet of total elevation gain and descent. The 15K includes a large mountain climb and extended single-track sections on the Pacific Crest Trail, including the "black hole" tunnel that extends for more than 500 feet. The 5K and 10K use a looping route inside Vasquez Rocks with moderate climbing and single-track segments.
Aid and event services are provided on course. Organizers position five aid stations; depending on distance, runners encounter between two and six stations. Stations supply water, electrolytes from Gnarly Nutrition, gels, chews, salt capsules, sweets, and snacks. The race operates as a cupless event to reduce disposable waste; participants are asked to bring a collapsible cup, water bottle, or hydration pack.
Entry fees for 2026 are listed per distance: Half Marathon+ $155, 15K $125, 10K $100, and 5K $80, each including entry and processing fees. Race inclusions noted by the organizer include a collectible finisher medal, official shirt, collectible space bag, finisher certificate, free race photos, podium awards, and a legacy gift for returning runners. A surprise item is noted for 15K and Half Marathon+ entrants. Visit the organization's website for the most recent information.
