Summit Rock Half Marathon
Saratoga, United States • 12 Dec 2026
Summit Rock Half Marathon, 10K and 5K, Sanborn Regional Park
Summit Rock offers trail races through the redwood groves of the Santa Cruz Mountains near Silicon Valley. Events take place on single-track trails in Sanborn Regional Park and include varied terrain with hills, ascents to peaks with views, flat sections and downhill stretches.
Distances offered:
- Half marathon
- 10K
- 5K
Half marathon and 10K routes include climbs that reach lookout points. All distances run on single-track trail sections under the redwood canopy where filtered light passes through the trees. Walkers and hikers are welcome to participate alongside runners.
All races are professionally timed using electronic chip timing and all finishers receive custom medals. The half marathon is part of the Brazen Ultra Half Series, a series of half marathons that often exceed 13.1 miles and feature significant ascents and descents on varied trails. Visit the organization's website for the most recent information.