Summit Rock Half Marathon

Saratoga, United States • 13 Dec 2025

Summit Rock offers 5K, 10K and half marathon routes through Sanborn County Park in the Santa Cruz Mountains near Saratoga, California. Runners travel along miles of single-track trails under a redwood canopy, with the half-marathon and 10K routes climbing to peak viewpoints. The course emphasizes trail exploration; walkers and hikers are welcome and even walking hills is encouraged to conserve energy for flats and descents.

All participants receive a custom finisher medal, and timing is electronic chip-based. Summit Rock is part of Brazen Racing’s Ultra Half Series, known for challenging, elevation-heavy trail routes in beautiful forest settings. Runners enjoy a supportive trail-running atmosphere amid pines and redwoods. Visit the organization's website for the most recent information.

Race information

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

Stevens Creek Striders Reservoir Run at Stevens Creek County Park in Cupertino, CA offers a Half Marathon (13.2 mi), an 11K (6.8 mi), and a 2.5‑mile Lollipop Loop along Stevens Creek and the reservoir. Runners navigate shaded Tony Look single-track and open Coyote Ridge vistas, with ascents on the h..

South Hills Single Track Trail Run takes place at Calero County Park in San Jose, California. The event offers a full slate of distances: 1 mile kids run, 5K, 10K, 9 mile, half marathon, 16 mile, trail marathon, and 50K. The course blends single-track trails and dirt roads, showcasing oak trees, hil..

Garin Park XC Challenge 2025, held at Garin/Dry Creek Pioneer Regional Parks on Garin Avenue in Hayward, California, is a 5K cross-country race described as a tough yet scenic run along the Garin Park ridge. Now in its 21st year, the event is part of the Pacific Association of USA Track & Field Cros..

The Mt. Umunhum Marathon, Race to the Top and Down, is a challenging trail running event held in Almaden Quicksilver County Park, San Jose, California. This marathon features a rugged course that begins at the Hacienda Entrance and ascends to the summit of Mt.Umunhum, one of the prominent peaks in t..

The Dick Collins Firetrails will take place in Castro Valley from Saturday 27 September 2025 to Sunday 28 September 2025. You can run between 42 and 100 kilometers.

UTMB Index

The Spartan Trail - San Jose Trail Challenge takes place in Sanborn County Park, located on the eastern slopes of the Santa Cruz Mountains near Saratoga, California. This scenic event offers three race distances: 10K, half marathon (21K), and 50K, featuring challenging, well-groomed trails with big..