Summit Rock Half Marathon, 10K & 5K
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Summit Rock Half Marathon, 10K & 5K : Saratoga, CA
The event on December 12, 2026 takes place in Sanborn Regional Park in the Santa Cruz Mountains near Saratoga. Courses run through redwood groves and single-track trails that include ascents to peaks with views and sections of flat and downhill terrain. The venue is described as tucked away just outside Silicon Valley and features miles of trail running among pines and redwoods.
Races are professionally timed using electronic chip timing and all finishers receive custom medals. Hikers and walkers are welcome on the courses. The half marathon is part of the Brazen Ultra Half Series, a series of half marathon events noted for longer-than-standard distances at times and for significant ascents and descents on varied trails.
Distances offered:
- Half marathon - trail course at Sanborn Regional Park
- 10K - single-track trail and mixed terrain
- 5K - shorter trail route under the redwoods
Additional event information notes bib pickup, course details, results and free photos provided by volunteer photographers. Sponsors are listed for the event. The presentation emphasizes trail running, varied elevation, and the redwood forest setting. Visit the organization's website for the most recent information.
